ALBERT

Notes: Purpose - To prepare modified epoxy resins from resorcinol, cresol and phenol for improved adhesion and chemical resistance. To evaluate the properties of such modified epoxy resins. Design/methodology/approach - Epoxy novolac resins (ENRs) were synthesised by condensing epichlorohydrin with novolacs based on different types of substituted phenols for improving adhesion and chemical resistance. Various compositions were made by incorporating different proportions of polyamide resin. The chemical and adhesive strengths of the conventional epoxy and the modified epoxy resins were characterised. Findings - The modified ENR using substituted phenols showed significant enhancement of chemical and adhesive strengths over the conventional DGEBA resin. The modified ENR had an increased number of glycidyl groups (thus increased functionality) of resin, which was responsible for improved chemical and adhesive strengths over the conventional DGEBA resin. Research limitations/implications - The EPN resins used in the present context was synthesised from phenol, resorcinol and cresol and cured by polyamide resin of different amine values. Besides, it could be synthesised from phenolphthalein p-aminophenol and p-ter-butylcatachol, etc. Practical implications - The method developed provided a simple and practical solution to improving the adhesive and chemical resistance of cured epoxy phenol novolac resins. Originality/value - The method for enhanced adhesive and chemical resistance of cured epoxy was novel and could find numerous applications in surface coating and adhesive.

Notes: Purpose - To investigate the effects of acetylation process as a chemical treatment method to improve the dimensional stability of wood, or as a pre-treatment step to enhance the dimensional stability of wood by impregnates. Design/methodology/approach - Esterification of two species of wood were carried out by vapour and liquid phase acetylation processes. With the vapour phase acetylation process, wood with different acetyl contents were obtained by changing the length of time of treatment. With the liquid phase acetylation, different acetyl content were obtained by changing the acetylating mixture or by activating wood with acetic acid for different periods of time and at different temperatures prior to the acetylation processes. The acetyl content and the conditions of impregnation improving the dimensional stability were modelled and optimised. The success of acetylation process for improving the affinity of wood towards the impregnation was also demonstrated. Findings - Vapour phase acetylation process was preferable over liquid phase acetylation for improving both water resistance and dimensional stability of wood species examined. Liquid acetylating of wood, as a pre-treatment step enhanced the effect of impregnates, especially the linseed oil to improve relevant wood properties. The greater improvement was obtained at 3?h impregnation time and 190°C curing temperature for 1?h. Research limitations/implications - Despite the success in improving the affinity of wood species to novolac by pre-acetylation, increasing the curing time and curing temperature led to deterioration of the water resistance and dimensional stability. Practical implications - Pre-acetylation of the wood provided a practical solution to rendering the natural wood greater water resistance property using commercial impregnates. Originality/value - The method for acetylation of wood prior to impregnation was novel and could be used for inhibiting wood against moisture absorption during storage.

Notes: Purpose - To evaluate the effects of different levels of quaternised pyrodextrin as wet-end and filler retention aid additives in papermaking. Design/methodology/approach - The pulp furnishes used in this study were a mixture of bleached rice straw pulp with bleached sulphite softwood pulp at a ratio of 60:40. The beaten pulps (never dried) were treated with different grades of modified starch (Pyrodextrins). The results obtained were compared with those of several commercial polymers, such as Accostrength®86, cationic starch and polyacrylamide. Findings - The results obtained from this study showed that addition of 0.3 percent of British Gum (BG) (Degree of Substitution at 0.058) grade pyrodextrin to the pulp slurry, especially in case of kaolin as paper filler gave the most significant improvement in paper properties as well as filler retention. The results obtained also showed that the filler retention and paper properties were better/higher for all pyrodextrins studied than those obtained from both Accostrength®86 and polyacrylamide. Research limitations/implications - Using quaternised pyrodextrins as wet-end additives and filler retention aids improved all mechanical properties of treated paper, except the brightness which decreased very slightly. Practical implications - The grade of pyrodextrins used in this work could be used to improve the physical and strength properties of paper sheets. Originality/value - Different types of pyrodextrin namely, Dexy-84 (D-84), Dexy-86 (D-86) and British Gum (BG) could be used as paper wet-end additives and filler retention aids in paper making processing.

Notes: Purpose - To develop a method for the preparation of micaceous zinc ferrite (MZF), anticorrosive pigment having desirable chemical and physical properties. Design/methodology/approach - MZF pigment was prepared after firing the oxidised solid molten salts without washing. The MZF pigment obtained was characterised using X-ray diffraction analysis, crystal size analysis, scanning electron microscope and energy dispersive X-ray analysis. The pigment obtained was also evaluated chemically with respect to moisture content, content of water-soluble salts, hydrogen ion concentration (pH) and weight loss; and physically with respect to particle shape, colour, specific gravity and oil absorption. Commercially available micaceous iron oxide and zinc ferrite pigments were also characterised in comparison. Findings - A spinel, MZF pigment was prepared using relevant oxidised solid molten salts. The preparation produced a lamellar structure with a basic nature giving not only barrier protection but also chemical passivation of the substrate. Research limitations/implications - The anticorrosive properties of the pigments obtained could be evaluated using more conventional methods such as salt-spray test. Practical implications - The pigment prepared could be used as a highly efficient pigment for anticorrosion coating for steel. Originality/value - The method for the preparation of MZF pigment was novel. The pigment obtained could be used in various resin systems to produce anticorrosive paints for steel protection.

Notes: Purpose - To evaluate the efficiency of complex esters as plasticizers in polyvinyl chloride plastisols and plasticates. Design/methodology/approach - Several poly(vinyl chloride) plastisols and plasticates were prepared with standard phthalate plasticizers and complex esters and were characterised using standard and laboratory methods. Findings - The use of mixtures of three new CE with standard phthalate plasticizers increased the physical, mechanical and electric characteristics of the resulting PVCPs and PVCPl. Research limitations/implications - The use of three new CE, obtained by esterification of dicarboxylic acids (adipic, sebacic, pelargonic), poly(ethylene glycol) and i-octanole, as plasticizers of poly(vinyl chloride) plastisols and plasticates was investigated. The use of CE based on other organic acids could be explored. Practical implications - The results confirmed the efficiency of plasticization of PVC by CE. Such a finding has significant industrial implication. Originality/value - Several findings are original and are of importance to relevant industry. The new CE with high molecular weights were effective plasticizers of PVC. The efficiency of the plasticizers depended on their chemical structure. The molecular weight of the CE had no influence on the compatibility of plasticizers and other components of the PVC plastisols and plasticates.

Notes: Purpose - To prepare and characterise organotin polymers via a new synthetic route by exchange reactions of poly-N-acryloyloxy- and poly-N-methacryloyloxy-tetrabromophthalimide with hydroxy- and aminotri-n-butyltin benzoates. Design/methodology/approach - Preparation of N-acryloyloxytetrabromophthalimide (NATP) and N-methacryloyloxytetrabromophthalimide (NMTP) by the reaction of N-hydroxytetrabromo-phthalimide with acryloyl or methacryloyl chloride. The exchange reactions of the resulting polymers with amino and hydroxytri-n-butyltin benzoate were carried out. The structure of the resulting compounds was characterised. Findings - NATP and NMTP were prepared by the reaction of N-hydroxy-tetrabromophthalimide with acryloyl or methacryloyl chloride in the presence of TEA. The monomers prepared were easily polymerised. The exchange reactions of poly-NATP and poly-NMTP with amino and hydroxytri-n-butyltin benzoate were studied. The structure of the polymers and copolymers prepared was confirmed by tin analysis, IR and 1HNR spectroscopy. Research limitations/implications - The new monomer described in the present investigation may be useful for the preparation of organotin polymers by a new synthetic route. Also, the organotin polymers prepared had good film properties and were suitable for film formation. Practical implications - The method for the preparation of monomer is simple and the exchange reactions provide a simple and practical solution for preparation of some classes of organotin polymers and copolymers. Originality/value - The method of preparation of organotin polymers was novel and may be useful for preparation of other organotin polymers and copolymers.

Notes: Purpose - To evaluate the efficiency of modifying flax fibre using copper ammonia solution for improved dyeability and to optimise the conditions of such a modification. Design/methodology/approach - Treatments of flax fibre using copper ammonia solution were carried out under various conditions, i.e. the compositions of the solution and the length of time for treatment. The dyeability, the dyeing colour depth, the tensile strength and the structure of the untreated and treated flax fibres were characterised. Findings - The modification of flax fabric using copper ammonia solution could improve the dyeability and the dyeing colour depth of the flax fabric. The treatment appeared to reduce the crystallinity and the orientation index of the flax fibre, which was the main cause to the improved dyeability and dyeing colour depth of the flax fabric. The optimum conditions for the treatment were as follows: concentration of Cu2+ at 20?g/L, Cu2+/NH3 ratio at 12?:?1 and time of treatment at 6?min. Research limitations/implications - Whilst effective in improving the dyeability of the flax fibre, the treatment led to a reduction in the tensile strength of the treated flax fabric. Practical implications - The method developed provided a simple and practical solution to improve the dyeability of flax fibre. Originality/value - The method for treatment of flax fibre was novel and could be used for industrial production process.

Notes: Purpose - To study the effect of inhibition of new bipyrazole derivatives on the corrosion of steel in HCl media at various temperatures. Design/methodology/approach - In this study, novel corrosion inhibitors, namely bipyrazoles were synthesised and tested as corrosion inhibitors for steel in 1?M HCl. The degree of corrosion was measured using various techniques including weight loss measurements, potentiodynamic polarisation, linear polarisation resistance (Rp) and impedance spectroscopy (EIS). Findings - It was found that 1,5,5'-trimethyl-1H,2'H-3,3'-bipyrazole (P1) gave the best inhibition effect. The inhibition efficiency increased with the concentration of P1 to attain 79 per cent at 10-3?M. Good agreement between the various methods explored was observed. Polarisation measurements also showed that P1 acted essentially as a cathodic inhibitor. The cathodic curves indicated that the reduction of proton at the steel surface was an activating mechanism. P1 adsorbed on the steel surface according to Frumkin adsorption model. Research limitations/implications - The synthesis route offers the possibility of other pyrazolic compounds to be tested in the future. Practical implications - The inhibitory efficiency of P1 increased with the increase of both the concentration and the temperature (in the 298-353?K range). As such, P1 can be used in chemical cleaning and pickling processes. Originality/value - The originality of this work is the synthesis of new inhibitors based on pyrazolic organic compounds.

Notes: Purpose - To evaluate the efficiency of modifying epoxy resin using amine terminated poly(ethylene glycol) benzoate (ATPEGB) for improved toughness and to optimise the results of such a modification. Design/methodology/approach - For effective toughening, various compositions were made by incorporating different concentrations of ATPEGB. The impact and adhesive strengths of the unmodified and modified epoxy networks were characterised. Findings - The modification of epoxy resin using ATPEGB showed significant enhancement of impact and adhesive strengths over the unmodified one. The modification caused a chemical linkage between ATPEGB and resin which led not only to a phase separation but also to ensuring the intrinsically strong chemical bonds across the ATPEGB phase/resin matrix interface, which was the main cause to the improved impact and adhesive strengths. The optimum results were obtained at 12.5?phr (parts per hundred parts of epoxy resin) of modifier. Research limitations/implications - The modifier, ATPEGB, used in the present context was synthesised from poly(ethylene glycol) (PEG) of molecular weight 600. Besides, it could be synthesised from PEG of molecular weight 200, 400, 4,000, 20,000 etc. In addition, the efficiency of modification of epoxy resin using these could also be studied. Practical implications - The method developed provided a simple and practical solution to improving the toughness of cured epoxy. Originality/value - The method for enhanced toughness of cured epoxy was novel and could find numerous applications in surface coating and adhesive.

Notes: Purpose - Synthesis and evaluation of new naphthopyran and related compounds as ultraviolet absorbers. Design/methodology/approach - The new naphthopyran and related compounds were prepared using new synthesis methodology which gave new derivatives via positions not accessible by traditional methods. Findings - A new method for the preparations of naphthopyran was developed. The naphthopyran compounds prepared had promising UV absorption/protection capabilities. Practical implications - The new compounds synthesised had unique character enabling them to be used in applications such as UV absorber and sunscreen. Originality/value - New method of synthesis and the possibility of using the naphthopyran derivatives as UV absorber in many applications.

Notes: Purpose - To determine the optimal general condition for the synthesis and polymerisation of 2-(N-phthalimido)ethyl acrylate (NPEA), as well as the exchange reactions of poly-NPEA with aminated and hydroxylated compounds as a model compound. Design/methodology/approach - Preparation of 2-(N-phthalimido)ethyl acrylate by the reaction of N-(2-hydroxyethyl) phthalimide with acrylic acid and polymerisation of the resulting monomer. The exchange reactions of the resulting polymer with amines and hydroxy compounds were carried out. The structure of the resulting compounds were characterised. Findings - NPEA was prepared by the reaction of N-(hydroxyethyl)phthalimide with acrylic acid. The monomer prepared was easily polymerised. The reactions of the resulting polymer with amines and hydroxy compounds were studied. In all cases, the exchange reactions were almost practically quantitative, which was confirmed by elemental analysis, IR and 1HNMR spectroscopy. Also, it was clear that poly-NPEA showed a good behaviour as a model compound for a long active polymeric-drug. Research limitations/implications - The new monomer described in the present investigation may be useful for the preparation of polymeric-drug adducts. Also, similar monomeric phthalimides may be synthesised starting from a number of other hydroxy or amino acids, thus providing wider possibilities for the synthesis of pharmacologically active polymers. Practical implications - The method for preparation of monomer is simple and the exchange reactions provide a simple and practical solution to prepare some classes of macromolecular drugs. Originality/value - The method of preparation of polymers was novel and may be useful for preparation of polymeric-drug adducts.

Notes: Purpose - To investigate the effects of the temperature of synthesis and of the thermal treatment of zinc chromate on the properties of the zinc chromate pigments. Design/methodology/approach - Zinc chromate pigments was prepared using zinc salt solution, sodium hydroxide and potassium dichromate solutions. The reaction temperature was varied in order to evaluate the effect of the reaction temperature on the properties of the pigment synthesised. The pigment obtained was heated to 10°C above the critical temperature in order to investigate the effect of thermal treatment on the pigment properties. SEM, XRD, XFR and STA were employed for the characterisation of the pigments synthesised. Findings - Reaction temperature had a significant effect on the properties of the resulting pigment. Thermal treatment of the pigment caused the decomposition of the zinc chromate phase to ZnO, ZnCr2O4 and K2CrO4 phases. The glaze containing zinc chromate had satisfactory colour characteristics. Research limitations/implications - The study focused on the preparation and evaluation of zinc chromate as a substitute for praseodymium zircon in glaze. The study could be extended to investigation of similar inorganic pigment for similar purposes. Practical implications - The information on the effects of the reaction temperature of pigment synthesis and of thermal treatment of the pigment is useful for industrial production of the pigment of satisfactory properties. Originality/value - Novel use of zinc chromate as a lower-cost substitute for praseodymium zircon in glaze and understanding of the effects of the production conditions on the properties of the resulting pigment and the glaze.

Notes: Purpose - To study the effect of feldspars as inorganic filler on the mechanical and dielectric properties of epoxy coatings. Design/methodology/approach - Coating systems used were of either filler-free epoxy resin (as reference), or epoxy resin filled with feldspars powder at four different levels by weight. Mechanical properties of the coatings were evaluated via damping hardness and abrasion and impact resistance measurements. Electrochemical impedance spectroscopy measurements were used for the evaluation of the dielectric properties while visual observations of the test panels after salt-spray test were also made. Findings - The addition of 15 per cent w/w feldspars resulted in a formulation giving the most positive results, e.g. improvement of the coating's mechanical characteristics and dielectric behaviour similar to that of filler-free epoxy coatings. Practically comparable to this behaviour was that possessed by coatings with 30 per cent w/w feldspars, while further increase of the feldspars content resulted either in a reduction in the extent of the enhancement of the mechanical behaviour or even in a worsening of both mechanical and dielectric characteristics. Originality/value - Feldspars are the most abundant group of minerals in the earth's crust; it is an inorganic, environmentally friendly material, which exhibits high Mohs hardness. The effects of feldspars in improving the mechanical characteristics of organic coatings, while not causing any reduction in the anticorrosive performance of the polymeric matrix was found through the study.

Notes: Purpose - To develop a method based on urea/microwave treatment for improving the dyeability of the flax fibre. Design/methodology/approach - The treatment was carried out under a variety of conditions in terms of the power of the microwave, the time of microwave treatment and the use of urea in the treatment solution. The physical chemical properties of the treated flax fibres were characterised using a variety of techniques including scanning electron microscopy (SEM), X-ray diffractometry, spectrophotometric measurement and tensile measurement. Findings - It was found that the treated flax fibres had significantly improved dyeability. The causes to the improvement of the dyeability of the flax fibre were found to be the increased absorption of dye on the fibre and the increased reaction probability between the dye and the fibre. The procedure for optimum modification appeared to be soaking the flax fabrics in 10 per cent urea solution; treating the fabrics with microwave at 350?W for 2.5?minutes; and treating the fabrics with microwave at 700?W for one minute. Practical implications - The treatment method developed addressed a problem of great concern in textile coloration, i.e. poor dyeability of flax fibre. The method developed provided a practical and effective solution to such a problem. Originality/value - The method of treatment of flax fibre, involving soaking in urea and baking in microwave, for the improvement of dyeability was novel. The method could be adapted for use in industrial scale flax dyeing with satisfactory levels of exhaustion and fixation.

Notes: Purpose - To evaluate the performance of the compatibiliser of epoxidised soyabean oil-free fatty acid prepared on the NBR/EPDM blends compared with maleic anhydride and also to explore the effect of loading the compatibiliser NBR/EPDM rubber blend with unmodified and modified polypropylene fibres on the mechanical properties of the blend. Design/methodology/approach - To achieve desirable rheological and physico-mechanical properties of NBR/EPDM rubber blend, various compositions were made by incorporating different doses of the compatibiliser of epoxidised soyabean oil-free fatty acid prepared and maleic anhydride to form NBR/EPDM blends. The effect of loading the compatibiliser rubber blend with unmodified and modified polypropylene fibres on the mechanical properties of the blend was investigated. Findings - The incorporation of epoxidised soyabean oil-free fatty acid or maleic anhydride into NBR/EPDM blend greatly enhanced their compatibility improved the rheological, as well as physical properties of rubber blends. The addition of NBR to EPDM improved the motor oil swelling resistance of EPDM. Blending of the two individual rubbers without a compatibiliser generally exhibited a non-synergistic effect with respect to the physical properties. The strain energy, tensile strength, Young's modulus and strain at yield varied linearly with composition in the presence of compatibiliser, but deviated from linearity in the absence of compatibiliser. Reinforcement of the NBR/EPDM blend with modified polypropylene fibres enhanced the physical properties more significantly than with the unmodified ones. Research limitations/implications - The compatibiliser of epoxidised soyabean oil was prepared by reacting in situ soyabean oil-free fatty acid with per-acetic acid. Practical implications - The method developed provided a simple and practical solution to improving the rheological and physico-mechanical properties of the NBR/EPDM rubber blend. Originality/value - The method for enhancing rheological and physico-mechanical properties of NBR/EPDM rubber blend loaded with modified polypropylene fibres was very important and showed a synergistic effect and could find numerous applications in the rubber and plastic industries.

Notes: Purpose - The preparation and characterisation of new bioactive polymeric materials. Design/methodology/approach - New bioactive polysaccharide were prepared by grafting of acrylonitrile onto water soluble starch and then reacting with bioactive heterocyclic rings. The biological activity, against bacteria, of the materials prepared was studied. Findings - Some of the prepared bioactive materials show high disinfecting power against bacteria. Research limitations/implications - The bioactive materials were prepared by grafting acrylonitrile onto starch and then reacting the resulting material with cyanuric acid and 2-aminothiazole. Many other heterocyclic rings that contain tertiary nitrogen atom or amide nitrogen can also be used. Practical implications - The new bioactive materials prepared can be used for disinfecting purposes. Originality/value - Some of the materials prepared were used successfully in killing bacteria, as such, can be used as disinfecting materials.

Notes: Purpose - To evaluate the photochromic performance of photochromic compounds in polymer matrices. Design/methodology/approach - The epoxy resin doped with photochromic fulgide were prepared and the effect of UV irradiation were studied using spectrophotometer. The reversible reaction was effected using white light. The effect of heat was also determined. Findings - A film of fulgide 1-E doped in epoxy polymer was irradiated with UV light (366?nm), the film turned pink. The later colour was switched back to the original colour when the film was irradiated with a white light. The photocoloration and photobleaching obeyed first order rate equations with rate constants being 4.19×10-3?s-1 and 2.86×10-2?s-1, respectively. It was found that the film showed a good fatigue resistance. Another film was preheated at 80°C for 1-4?h. No change in the UV absorption spectra of the film was observed. Similarly, the photocoloration and photobleaching of the annealed film showed first order rate equations with rate constants being 8.77×10-3?s-1 and 4.02×10-2s-1, respectively. Interestingly, the photocoloration and photobleaching reactions of the annealed film were faster than those of the non-annealed film. Research limitations/implications - The epoxy resin doped photochromic fulgides described in the present paper was prepared and studied. The principle of study established can be applied to any type of resin or to any type of photochromic compounds. Practical implications - The photochromic materials developed can be used for different applications, such as coatings and holography. Originality/value - The method developed may be used to enhance the performance of photochromic materials.

Notes: Purpose - To evaluate the competing reaction of isocyanate with cellulose and water which can provide direction for further studies on bonding and curing reactions of isocyanate with wood. Design/methodology/approach - Two modern analytical techniques, Fourier transform infra-red (FTIR) and X-ray photoelectron spectroscopy (XPS), were used. The FTIR was used to identify the products of the reaction of phenyl isocyanate (PI) with alcohol, water, and cellulose; while the XPS was used to evaluate the proportions of isocyanate that reacted with water or cellulose when PI reacted with cellulose at different moisture contents (MCs), respectively. Findings - Methods for the IR identifications of reaction results of PI with n-propanol, water, and cellulose, in which the reactions of PI with water and PI with cellulose resulted in N,N'-diphenylurea and carbamate, respectively, were developed. It was discovered that the extent of reaction of isocyanate and cellulose decreased with increasing cellulose MC, and 92.98 per cent isocyanate reacted with water when 9.78 per cent MC was reached. It was confirmed that the products of the PI reaction were distributed mainly on the surface of the cellulose particles. Research limitations/implications - The study only focused on the reaction of PI. However, the industrial isocyanates, e.g. methylene diphenyl diisocyanate (MDI), polymerized methylene diphenyl diisocyanate (p-MDI) that have complexities in chemical structures and components, make analyses with FTIR and XPS impossible. Practical implications - The paper provides some instructive information about the isocyanate reaction that will help understanding the characteristics of isocyanate and guiding the design of technology bonding isocyanate to fibre, wood, etc. Originality/value - The application of FTIR and XPS for evaluating the reaction of isocyanate with cellulose having different MCs was novel and may be used as a reference for other relevant studies.

Notes: Purpose - To evaluate the corrosion inhibition potential of Datura metel in acid medium on mild steel (MS) with a view to develop green corrosion inhibitors. Design/methodology/approach - Acid extract of the D. metel was studied for its corrosion inhibitive effect by electrochemical and weight loss methods. Using weight loss measurement data, an attempt has been made to probe the mechanism of inhibitive action by fitting adsorption isotherms. Findings - D. metel has been found to show significant corrosion inhibitive effect in acid medium on MS. Inhibition is through adsorption of the phytoconstituents on MS following Tempkin and Langmuir adsorption isotherms. The results of A.C. impedance and polarisation studies correlate well with the weight loss studies. Originality/value - The plant has been investigated for the first time for its corrosion inhibitive effect. The effect has been studied by proven methods. This green inhibitor can find use in the inhibition of corrosion in industries where MS is used as a material of choice for the fabrication of machinery.

Notes: Purpose - Trials to develop environmentally friendly marine paints based on natural materials as replacement for copper and tin compounds for fouling and marine corrosion control. Design/methodology/approach - Green algae, tubeworms in dead powder form and garlic were used as natural anti-fouling components in the paints developed. Electrochemical technique was employed for testing the potential of both tubeworms and garlic in terms of inhibition of steel corrosion in seawater. Marine paint formulations containing each of the three selected natural materials were applied onto PVC and un-primed steel surface, which were immersed in natural seawater for the assessment of their anti-fouling and anti-corrosion properties. The results of visual assessment and seawater analysis were also used for such an evaluation. Findings - Tubeworms act as mixed type inhibitor while garlic affects the potential cathodic process of steel in seawater. Tubeworms-based paint, with 25 per cent in the dry paint film, could protect steel surface from marine corrosion up to 7 months. The paints containing algae and garlic, and the corresponding algae/garlic free paints, resisted slime film formation. Steel and PVC coated surfaces with paint containing algae showed the best anti-fouling potential within the prepared series. Research limitations\implications - The investigation only involved the application of the dead form of green algae and tubeworms as effective pigments in the developed paints. It is recommended that further research should focus on extracting and identifying the active components in each organism against fouling and marine corrosion. Practical implications - The paint formulations developed (containing 25 per cent by weight tubeworms in the paint film) could be used to protect un-primed steel surface against fouling and marine corrosion for a reasonably long duration. Originality/value - The application of one paint formulation on un-primed steel surface for its protection from both fouling and marine corrosion is novel. The electrochemical studies of steel in natural seawater in presence of tubeworms and garlic are original.

Notes: Purpose - The print fault "dot bridging" reduces the printing press efficiency. This study was designed to find the best combination of materials used in normal production which would reduce or eliminate the problems thus increasing efficiency. Design/methodology/approach - Various statistical methods were used to design the experiments and to analyse the experimental results. The experiment included all of the factors which were considered to have an effect on the "dot bridging" print fault. Findings - The most important conclusion that can be drawn from the results is that the complex interactions between factors included in the process can be characterised. The experiment proved that the problem was not random. The data gathered during the experiment had a direct correlation with the psychometric results. Various factors included in the experiment were found to have a significant influence on print density and print contrast. Contrast and density were selected for analysis as ink film thickness was thought to have an influence on the best looking print samples and the "dot bridging" print fault. Research limitations/implications - The results of the experiment were used to optimise the production process particularly the platemaking technique. Data from further experiments would help to optimise more process parameters. Practical implications - Minitab computer software was used to analyse the results of the experiment thus making it easier to communicate the results to non-scientific production staff. Originality/value - This was the first time that the printer concerned had used a scientific approach to problem solving. The end result for the printer was an increase in production efficiency which saved the printer a considerable amount on money.

Notes: Purpose - The study reported here concerned production of green pigments, hydrated nickel(II) silicates and oxides, obtained by precipitation from solutions of sodium metasilicate and sodium hydroxide using nickel(II) sulphate. Design/methodology/approach - The pigments were analysed using a number of techniques including scanning electron microscopy for particle surface morphology and dynamic light scattering for particle structure and the tendency of the particles to agglomerate. Findings - The most desirable physicochemical parameters were shown by highly dispersed nickel(II) silicates precipitated in presence of the modifying agents. Silicate pigments precipitated in the presence of Rokanol K-7 had low bulk densities, a high capacity to absorb water, dibutyl phthalate and paraffin oil within the primary particles, which is particularly noteworthy. Practical implications - Due to their good dispersibility, well developed surface and appropriate coating power, coloured silicates of, e.g. chromium(III) and nickel(II) may be used as pigments and fillers for surface coatings. Originality/value - The method of obtaining nickel(II) pigments developed was novel and provided a solution for problem of post-galvanic nickel solutions.

Notes: Purpose - To evaluate the efficiency of modifying epoxy resin using phenol-nonyl phenol based polymer (PNPF) for toughness improvement and optimise the results of such a modification. Design/methodology/approach - For effective toughening, various compositions were made by incorporating PNPF at different concentrations. The impact and adhesive strengths of the unmodified and modified epoxy networks were characterised. Findings - The modification of epoxy resin using PNPF showed significant enhancement of impact and adhesive strengths over the unmodified one. The modification caused the formation of a chemical linkage between PNPF and resin which led not only to a phase separation, but also to formation of intrinsically strong chemical bonds across the PNPF phase/resin matrix interphase, which was the main cause of the improved impact and adhesive strengths. The optimum results were obtained at 10?phr (parts per 100 parts of epoxy resin) of modifier. Research limitations/implications - The modifier, PNPF, used in the present context was synthesised from phenol, nonyl phenol and formalin using oxalic acid as catalyst. Practical implications - The developed method provided a simple and practical solution to improving the toughness of a cured epoxy. Originality/value - The method for enhancing toughness of a cured epoxy was novel and could find numerous applications in the surface coating and adhesive.

Notes: Purpose - Several solid solution combinations of aluminium oxide and iron oxide, for the preparation of a new pigment, were investigated to study the effect of aluminium oxide to iron oxide ratio on various properties of the resulting pigments. Design/methodology/approach - The conditions for the preparation of the pigments via solid solution interaction at 1,000°C had been estimated. Characterisation of three different combinations of aluminium oxide and iron oxide were carried out using spectroscopic methods of analysis via X-ray diffraction (XRD), transmission and scanning electron microscopy (TEM and SEM). Also, evaluation of the pigments prepared, in terms of oil absorption, specific gravity, water-soluble matter, and pH, using international standard testing methods was performed. The pigments prepared were incorporated in anticorrosive paint formulations based on medium oil alkyd resin as a binder. The physico-mechanical properties of the relevant paint films were obtained, while their anticorrosive properties were assessed by tests in 3.5 per cent NaCl solution for 28 days. Findings - The results showed that the anticorrosive protection properties of the pigment prepared were better than their aluminium and iron counterparts. Research limitations/implications - The pigments prepared may be used in different applications other than paint formulations. As the concentration of iron oxide increases, the hardness and the anticorrosive protection performance of the paint film increase. As the concentration of aluminium increases, elasticity, impact resistance and ductility also increase. Application of different combinations of these pigments in paint films had been studied. However, investigation of the application of these pigments in other systems such as plastics could also be interesting. Practical implications - The pigments prepared can be used as reinforcing filler in different rubber and plastic composites, beside its ferro-magnetic properties. As the concentration of alumina increased, the reinforcing and magnetic effects decreased and vice versa. Originality/value - Iron oxide is an abundant ore in several world countries; it is an inorganic, environmentally friendly material, which exhibits good Moh's hardness. Adding aluminium oxide which is a very light element having a unique flaky structure to iron oxide gave a new pigment that can be used not only in paint formulations, but also in rubber and plastic composites as reinforcing fillers.

Notes: Purpose - To prepare of fine particle size magnesium ferrite pigments by sol-gel method. Design/methodology/approach - Different magnesium ferrite pigments with stoichiometric ratios were prepared by sol-gel and dispersion methods. The characterisation of magnesium ferrite pigments were based on X-ray diffraction, transmission electron microscope, particle size distribution, thermal and magnetometric analyses. Findings - The type of polymer and the starting inorganic materials (oxides or salts) have a significant effect on the properties of the magnesium ferrite pigments prepared. Research limitations/implications - The magnesium ferrite pigments, prepared and used in the work reported here were synthesised from magnesium and iron oxides, oxalates and chlorides. Urea formaldehyde resin and acrylic polymer were used as the dispersing media. Various other materials, e.g. carboxymethyl cellulose, ethoxy methyl cellulose, polyvinylalcohol and 2-hydroxyethyl methacrylate and polyacrylamide can also be used to achieve similar effect. Practical implications - The sol-gel method provided a fine particle size and different particle shapes. Therefore, the method of preparation could be used to produce fibres, films and monoliths. Originality/value - The magnesium ferrite pigments prepared could be use in numerous paints for steel protection.

Notes: Purpose - To investigate the efficacy of Telfaria occidentalis extract as a corrosion inhibitor for mild steel in 2?M HCl and 1?M H2SO4 solutions, respectively, and to assess the effect of temperature and halide additives on the inhibition efficiency. Design/methodology/approach - Corrosion rate was monitored by careful volumetric measurement of the evolved hydrogen gas at fixed time intervals. Inhibition efficiency was determined by comparing the corrosion rates in the absence and presence of additive. Attempts were made to elucidate the inhibition mechanism from the trend of inhibition efficiency with temperature. The adsorption mode of inhibiting species in the extract was assessed by considering the influence of both acid and halide ions on inhibition efficiency. Findings - Telfaria occidentalis extract inhibited mild steel corrosion in 2?M HCl and 1?M H2SO4 solutions. Inhibition efficiency increased with extract concentration but decreased with rise in temperature. Synergistic effects increased the efficiency of the extract in the presence of halide additives in the order KCl〈KBr〈KI. Protonated species in the extract composition played a vital role in the inhibiting action. Originality/value - This paper provides new information on the inhibiting characteristics of Telfaria occidentalis extract under the specified conditions. This environmentally friendly inhibitor could find possible applications in metal surface anodising and surface coatings.

Notes: Purpose - Preparation of new organotin polymers via a new synthetic route based on the exchange reactions of pentachlorophenyl acrylate or methacrylate with amino-tri-phenyltin benzoates or hydroxyl-tri-phenyltin benzoates. Design/methodology/approach - The pentachlorophenyl acrylate or methacrylate was prepared by polymerisation in solution with azobisisobutyrontrile as a free radical initiator. The polymers obtained were allowed to undergo exchange reactions with amino-tri-phenyltin benzoates or hydroxyl-tri-phenyltin benzoates. The structure of the polymers prepared was confirmed by IR spectroscopy. Films were prepared from purified organotin polymers solution on glass, PVC and tin plates. The release of tin compound from the films, when immersed in aqueous media, was assessed. The concentration of the released tin (ppm) was measured by atomic adsorption spectrophotometer. Findings - The new synthetic route was effective, the organotin polymers prepared had good film properties and the release of tin compounds increased with the content of tin in the organotin polymers. Research limitations/implications - The alkaline resistance of the polymeric films prepared needs improvement. Practical implications - The polymers prepared provide a family of effective polymeric fungicide useful for a number of applications including water sterilisation. Originality/value - The polymers prepared contained pendent triphenyltin moieties which slowly hydrolysed to give fungicidal and antifouling effects.

Notes: Purpose - To investigate a new approach for the prevention of lignocellulosic composites based on agro-fibres (e.g. sugar-cane bagasse) from the emission of toxic formaldehyde. Design/methodology/approach - Five organic polymer containing nitrogen-urea formaldehyde (UF) adhesive systems were used as bonding agents for bagasse fibres. The environmental performance of the lignocellulosic composites prepared were evaluated in terms of the effect of the organic polymers on the percentage of free formaldehyde in the adhesive system and the adhesion properties (static bending and water resistance properties) of the composite produced, in comparison with that prepared from un-modified UF. The nitrogen content of the polymer and the amount of organic polymers incorporated in the adhesive system were optimised using the 3D response surface methodology and the multi-linear regression technique. Findings - All investigated organic polymers (crude PAM-g-starch, PAM-g-starch, PAM, CE-starch and Cm-starch) were found to enhance the performance of the UF-adhesive for producing environmentally friendly bagasse-composite, whereas the reduction of free-HCHO in UF-adhesive systems ranges from 26 to 100 percent. The performance of the composite produced exceeded the ANSI requirements for Grade H-3 particle-board. Research limitations/implications - Despite the success in improving the performance (mechanical properties and reduction of free-formaldehyde) of the UF-adhesive and agro-composites, the polymers needed to be incorporated at a high percentage (12-20 percent) resulting in reduced water resistance of the product. Further investigation is needed to resolve this problem. Practical implications - The approach developed provided a simple and practical solution to enhancing the performance of waste agro-fibres and commercial amino adhesive in the production of high performance lignocellulosic composite. Originality/value - The organic polymers UF adhesive systems are novel bonding agents for agro-fibres and could be used in timber mills for production of particle-board and medium density fibre-board.

Notes: Purpose - To develop a water repellent (WR), rodent repellent (RR) and UV resistant (UVR) formulation for woven nylon tapes to be used in aircraft arrester system. Design/methodology/approach - UVR, WR and RR formulation for woven nylon tapes were prepared using silicone oil as WR, oleoresin (OR) (red chilly extract) and denatonium benzoate (DB) as RRs, carbon black for UV resistance and butyral resin as binder. Findings - Incorporation of silicon oil improved the water repellency of the processed nylon tapes. DB and OR in the formulation protected the tapes from rats. The former showed excellent protection for nylon tapes in the experimental conditions. More than 150 days of protection has been achieved in comparison to 27 days using OR. The presence of carbon black along with silicon oil and DB in the formulation enabled the nylon tapes UVR-WR-RR in a single processing step. The presence of RRs and WRs within the same formulation did not affect each other's performance. Research limitations/implications - OR and DB were used as RR materials and silicone oil as WR material. In addition, some other RR and WR materials could have been evaluated. Practical implications - The formulation imparts UV resistance, water and rodent repellency to the nylon tapes after processing. Originality/value - This type of formulation is novel for processing of nylon tapes to be used in aircraft arrester systems.

Notes: Purpose - Preparation of chelating resin to be used in the removal of heavy metal ions from solutions. Design/methodology/approach - Chelating resin based on poly (glycidyl-methacrylate-co-N, N-methylene-bis-acrylamide) containing ethylenediamine was synthesised and used in removal of heavy metals from solutions. Findings - The optimal pH values for adsorption of different metal ions occur in the range 4.0-10.0 depending on the metal ion used. The adsorption of metal ions increases with increasing treatment duration to reach to the equilibrium state. Also, the adsorption of metal ions depends on the degree of cross linking of the chelating resin, and a higher degree of cross linking results in a lower degree of metal ion adsorption. The chelating resin was highly effective for the collection of metal ions by batch and column methods. The metal ions adsorbed could be eluted with 2M HNO3 except Co2+ and the resin could be reused. Research limitations/implications - The different factors affecting the metal ions (Cu2+, Co2+, Cd2+, Zn2+, Pb2+ and Hg2+) loading in resin such as pH, contact time and cross linking density were studied. Practical implications - The practical applicability of the chelating resin for final stage of waste water treatment is recommended for use as a polishing agent. Originality/value - The resins prepared were used successfully in removing heavy metals from water.

Notes: Purpose - The snacking habits of children can be a cause for concern. Little research has been undertaken on the snacking habits of Mauritian schoolchildren. This study was conducted to identify the popular snacks upper primary schoolchildren (8-12 year old) buy at school. It also aimed at determining the factors that influenced children's purchase of snacks. Design/methodology/approach - Twelve primary schools were selected using stratified random sampling. Thirty children from each school were involved. Data collection methods included an interviewer-administered questionnaire and observation of schoolchildren's snacking habits during lunch-time. Canteen sellers were also interviewed to gather information about the most popular snacks and their cost. Findings - Findings revealed that most of the popular snacks were high in sugar, fat, energy or salt. Snacking habit of schoolchildren was significantly associated with age and gender (p〈0.05). Children's snacking habit seemed to be largely influenced by the cost of snacks, their taste and availability, and the amount of pocket money. Originality/value - Previous studies on snacking habits have focused on lower primary schoolchildren (5-7 year old) and adolescents, while this study has focused on the upper primary schoolchildren (8-12 year old). The findings provide a sound basis for health and education authorities to develop a national policy on the sale of nutritious foods in primary school canteens.

Notes: Purpose - Probiotic fermented foods are fast being recognized as health foods. Most of such developed foods are based on dairy products and much less work is available on cereals/legumes which constitute the staple diet in developing nations. In the present study an attempt has been made to develop a barley-based probiotic fermented food mixture and report its acceptability and nutritional profile. Design/methodology/approach - Indigenously developed BCGT food mixture containing barley flour, milk coprecipitate, sprouted green gram paste and tomato pulp (2:1:1:1, w/w) was autoclaved (1.5kg/cm2, 15min., 121?C), cooled and fermented with 2 per cent liquid culture (containing 106 cells/ml broth). Two types of fermentations were carried out i.e. single culture fermentation [?L. casei, L. plantarum (37?C, 24hr.)] and sequential culture fermentation [S. boulardii (25?C, 24hr.)+L. casei (37?C, 24hr.); S. boulardii (25?C, 24hr.)+L. plantarum (37?C, 24hr.)]. The lyophilized and rehydrated food mixtures were subjected to organoleptic and nutritional evaluation. The data were statistically analysed for analysis of variance in a completely randomized design according to standard methods. Findings - All the fermented and lyophilized food mixtures were found to be organoleptically acceptable to human palate and maintained adequate cell viability. The pH of the fermented products varied from 4.13 to 4.55. They had good nutrient profile with crude protein content ranging from 20.87 to 21.81 per cent. Practical implications - Since the developed product had good acceptability after one month storage at room temperature, it can be considered for commercialization after establishing its health/therapeutic implications. Originality/value - Till date dairy foods have preferentially been used as the carrier medium for probiotics. This paper explores the possibility of using staple foods as the carrier medium. The consumption of such food mixtures may be useful in controlling pathogens/antibiotics induced diarrhoea as well as in hypercholesterolemia. To authenticate such claims, the results of trials carried out on mice in our lab shall be reported in future communications.

Notes: Purpose - The purpose of this paper is to outline some of the benefits and limitations of the new Welsh Hygiene Award Scheme. Design/methodology/approach - The benefits and limitations of the scheme are considered in relation to consumers and the industry. Findings - The Welsh Hygiene Award Scheme appears to be popular with award winners, some of the local authorities and most of the public who are aware of it. It is too early to determine whether the initiative has resulted in an overall improvement in the hygiene standards of businesses. Unfortunately, the initiative does not inform the public of actual standards in food premises. This lack of transparency mainly relates to a lack of information for businesses and the public, limited publicity for the scheme in the media and the evident need to educate the public. Originality/value - It adds to the limited literature on the evaluation of similar initiatives. Given that the FSA is considering the option of launching a national food hygiene award scheme, there is a need to carefully evaluate this and other schemes before finalising options.

Notes: Purpose - The purpose of this literature review is to examine the relationship between soy consumption and breast cancer risk since soy isoflavones, such as genistein, are currently discussed as possible breast cancer-fighting agents in the Asian diet. Design/methodology/approach - The approach taken is to summarize and evaluate the available literature on the effect of soy, and the Asian diet, on breast cancer risk. Findings - A key finding of the current analysis is that the effect of genistein depends strongly on dosage and developmental stage during which exposure occurs. The overall conclusion and value of this comprehensive analysis is that the available evidence does not support a recommendation for increased soy consumption as a breast cancer-preventing agent against the background of a Western diet. Instead, additional general components of the Asian diet, such as fish and plant-based food, may be involved in lowering breast cancer risk. Research limitations/implications - A limitation to drawing final conclusions at this time is that further research is clearly needed to better understand the overall effect of soy and other dietary factors. Practical implications - The practical implication for health care providers, nutritionists, and consumers is therefore a recommendation to avoid isoflavone supplements and enhanced soy consumption alone at this time without an increased intake of the other Asian diet components. Originality/value - This review arrives at new conclusions about the connection between soy and breast cancer that are summarized under findings and should be valuable for health care providers, nutritionists, and consumers

Notes: Purpose - The purpose of this literature review is to examine underlying mechanisms through which soy may affect breast cancer risk. Design/methodology/approach - The approach taken is to summarize the emerging mechanisms of how isoflavones, such as genistein, interact with processes leading to breast cancer. Findings - The key finding of this analysis is that these mechanisms include a multitude of contrasting effects of genistein on estrogenic and non-estrogenic signaling pathways controlling cell growth. Furthermore, several of these mechanisms are also regulated by additional dietary factors, such as omega-3 fatty acids (found e.g. in fish) and various other phytochemicals (factors found generally in plant-based foods). The available mechanistic information supports (i) a potent effect of dietary factors on cell growth and (ii) a synergistic effect of different dietary components, such as soy, fish, and plant-based foods. Practical implications - In conclusion, the practical implication of this analysis is the conclusion that the mechanistic information available at this time does not support a recommendation for an isolated increase in soy to decrease breast cancer risk. Originality/value - This article should be of value for health care providers, nutritionists, and consumers.

Notes: Purpose - The purpose of this paper is to express a general review on how best in the present time can one market genetically modified (GM) foods in the face of the controversial arguments faced globally. Despite the importance of marketing, many organizations though they understand its worth, fail to find radical strategic solutions for the problems encountered by their products. In fact most of them find that disclosing GM ingredients will prohibit consumers from buying their products, whilst, the few GM foods that were proactively marketed indicated the potential of effective marketing and successful product placement. Design/methodology/approach - To be able to market GM foods, an understanding of customer value and problems customers envisage is discussed. The paper attempts to provide a general global perspective on consumer's views about these issues and with the help of a conceptual model it attempts to identify some of the problems related with marketing GM foods. Findings - The findings indicate that these products would have to be repositioned as being seen as less risky and more beneficial to consumers in the light that they can be scientifically proven. Originality/value - This research is innovative in the sense it demonstrates an understanding of how to provide customer value for not only consumers who are the ultimate end users but also provides an insight to a broader audience such as manufacturers, agriculturalists and marketing professionals as to what are some of the contributing factors that consumers look for to make an informed choice.

Notes: Purpose of the paper - This paper gives an overview of the prevalence, symptoms, diagnosis and management of coeliac disease and associated disorders. It also gives some background to gluten testing in foods and developments in identification of gluten-free foods at consumer level. Design/methodology/approach - The most up-to-date literature on various aspects of the disease have been considered and included in the report. Findings - Coeliac disease is now known to affect one in 100 of the population, including both adults and children. As more is understood about the pathophysiology of the disease and antibody screening techniques improve rates of diagnosis are increasing. The biopsy is still required for a firm diagnosis. The range of symptoms that is now recognised is far wider than previously thought, but symptoms are still often missed, or mis-diagnosed as IBS. The treatment for coeliac disease is the gluten-free diet, which controls the symptoms and reduces the risk of complications such as osteoporosis and gut cancer. Prescriptions of gluten-free foods are known to improve adherence to the diet, and with the range of suitable foods in supermarkets increasing rapidly, gluten-free living is becoming easier. Originality/value - Information on several aspects of coeliac disease are presented in this paper to give the non-expert a general, up-to-date overview of the disease.

Notes: Purpose - The aim was to look at food-allergic consumers' preferences concerning the development of low-allergen food. Design/methodology/approach - A questionnaire was designed to measure attitudes towards low-allergen food. Data were collected from 20 food-allergic consumers in Austria, Spain and The Netherlands respectively between April and May 2002 using interviewer-assisted questionnaire methodology. Findings - The results suggested that food-allergic consumers are interested in having low-allergen food available, with 70-95 per cent wanting it produced. A total of 89 per cent identified a number of benefits to themselves, including being able to resume eating the food to which they were allergic, and being able to eat all food with no worries, no symptoms and no need to check labels. Fewer disadvantages were mentioned, with 53 per cent identifying no disadvantages. Factors that would encourage or discourage purchase of low-allergen food were also identified with price, quality (particularly taste) and safety being important. Whilst acceptance of low-allergen food produced using genetic modification was reasonably high (55-85 per cent), in general participants would prefer this food to be produced through conventional means. Research limitations/implications - Further research is required with a larger sample, where cross-cultural statistical comparisons can be made. Originality/value This study provides new information about acceptability of low-allergen food which is of use for the food industry when developing such food, benefiting both the industry and food-allergic consumers.

Notes: Purpose - The purpose of this review is to examine the effect of nutrition on mental functions of children and adolescents. Design/methodology/approach - The approach taken is to evaluate published research on key dietary factors, including recent, rigorously designed supplementation studies. Findings - The result of this analysis is that nutrition has potent effects on brain function. It is concluded that protein, iron, iodine, and the consumption of breakfast all impact on a child's learning capability and behaviour. Moreover, recent research has identified additional, potent roles of micronutrients, such as essential fatty acids, minerals, and vitamins, in the prevention of learning and behavioural disorders. Among the latter, this review focuses particularly on attention deficit hyperactivity disorder. Research limitations/implications - While several controlled supplementation trials with supplementation are now available, the limitation of the present analysis is that more large-scale trials are needed before final conclusions can be reached. Practical implications - The practical implication of this review for health-care providers, nutritionists, teachers, and parents at this time is that enough promising evidence has be accumulated to warrant a recommendation to include adequate levels of minerals, vitamins, essential fatty acids, and other nutrients in children's diets to improve learning and behaviour. Originality/value - This review is unique in its comprehensive nature and provides a synopsis of the power of diet in influencing learning and behavior for professionals and parents.

Notes: Purpose - In Brazil, studies on dietary fiber consumption are scarce. The greatest difficulty is to obtain reliable data on the fiber content of foods that are part of Brazilians' eating habits, which involves adjusting laboratory methodology. It is extremely important to evaluate the average daily fiber intake on a regional basis, considering the heterogeneous eating habits of the Brazilians. The study aims to estimate the average dietary fiber content of meals eaten in "by-the-kilo" restaurants. Design/methodology/approach - The foods used in the preparation of 1,907 meals consumed during one month in four restaurants in the city of São Paulo were studied. Intake, nutritional composition, and fiber analyses focusing on average lunch intakes were performed based on the RDA and SBAN (Brazilian Food and Nutrition Society) recommendations. Intake and nutritional composition results were compared with the values of a control meal theoretically prepared. A total of 40 samples of preparations using fiber-rich foods were analyzed and their dietary fibers and soluble and insoluble fiber fractions were determined by enzymatic-gravimetric method. Findings - The results showed that a lunch meal alone accounts for 69.2 per cent of the SBAN recommendation and 39.5 per cent of the maximum RDA for dietary fiber. Originality/value - Foods served in "by-the-kilo" restaurants proved to be good sources of fiber, and their insoluble-to-soluble fiber ratios were similar to the recommendations.

Notes: Purpose - Critical assessment of Government proposals to introduce Healthy Start, the first reform of the Welfare Food Scheme for over 60 years. Design/methodology/approach - Consideration has been made of the changes proposed in the new Healthy Start programme. While credit is given for the advantages in the new scheme, an assessment is made of deficiencies in the new proposals and suggestions made of what still needs to be incorporated into the plans before Healthy Start is launched in 2005. Findings - Sixty years after the wartime Government established the Welfare Food Scheme in 1940, the present Government, proposes to replace the Welfare Food Scheme with Healthy Start amid concerns that early nutrition of many infants and children is not optimal. Many components of the new scheme have been broadly welcomed, but there is considerable disquiet that the proposals fall short of what was proposed by a COMA Scientific Review Panel in 2002. Nutritional problems such as iron and vitamin D deficiency are being largely neglected. The opportunity to include follow-on formula, is being ignored. This will adversely affect the nutrition of infants and children in some of the poorest families in the country. Practical implications - Unless changes are made, an opportunity is being lost because the new proposals fall short of what is desirable. Originality/value - A review has been made of the new Healthy Start scheme for infants, children and their mothers before the scheme is implemented. It is important that revisions are made before the scheme is launched.

Notes: Purpose - The paper is a review of current research on phytochemicals and how they may alleviate type 2 diabetes by improving insulin activity in the body. Design/methodology/approach - Literature searches were conducted to find a link between common household spices and type 2 diabetes. Only common household spices were researched so that any link found between spices and type 2 diabetes could lead to practical home-based recommendations for changes in a person's diet. Findings - Cinnamon, garlic, ginger, basil, oregano, nutmeg, tea, bay leaf, allspice, curry, and others were found to play a role in lowering blood glucose, increasing insulin sensitivity, and increasing glucose synthesis in response to food intake. In addition, these spices may improve blood circulation, decrease platelet aggregation, lower blood pressure, and act as blood vessel protectants, ameliorating the cardiovascular disease often associated with type 2 diabetes. To gain these benefits, only average amounts commonly used in foods are necessary, such as amounts usually sprinkled in foods or amounts used in recipes. At high concentrated doses, the advantages to utilizing spices may be inhibited. Originality/value - The findings that phytochemicals in common household spices can improve insulin activity in the body present a more natural way to possibly treat and prevent type 2 diabetes.

Notes: Purpose - In Nigeria, the mango fruits consumption rate is high during its peak period and this has always resulted in environmental sanitation problem because the mango seeds are thrown to the surroundings immediately the fruits are eaten. Finding more useful application of the kernel would be a way to reduce the environmental pollution. Mechanical decortication of the leathery mango stone remains the only viable option that can support any prospected commercial uses of the mango kernel. Design/methodology/approach - The decorticator consists of a hopper, a decorticating chamber, spiked shaft, screen shaker and discharge spout. The machine performance was evaluated in terms of decorticating efficiency, mechanical damage and sieve loss. Findings - Results of the evaluation show that the optimum performance of the decorticator was at a speed of 900rpm, feed rate of 250kg/h and power requirement of 2.50kW. Originality/value - Mango stones are useful as substitute for maize in finishing broiler diets. The kernel is also used for medicinal purposes in moderation of anti-bacterial and anti-fungal activities. Therefore, the designed mango stone decorticator enhances the complete mechanization processes of mango products.

Notes: Purpose - This paper examines the attitudes of young Greek University students towards genetically modified (GM) foods and studies the effect of appropriate information in shaping this attitude. Design/methodology/approach - A questionnaire was distributed to 433 Greek students of the Technological Educational Institute of Athens during the academic year 2003-2004. Results were processed by SPSS 11.0. Findings - The survey reveals that although Greek University students are more informed than the general population about genetic modification issues, still a large proportion (48 per cent) are unaware of what is exactly a GM plant and 55.3 per cent believe that GM foods may impose risks for public health and the environment. However, after reading a short informative statement the "negative" attitude of respondents is decreased by 15.5 percentage units and the "positive" attitude is increased by 13.2 percentage units. These results show that appropriate information could affect the acceptability of a technological innovation. Future research is required to investigate how scientists could intervene in order to make the GM issue clear on a scientific basis. Originality/value - The findings of this study could be useful to those who are seeking to elucidate the complex issue of GM food acceptance and have an interest in establishing communication between the scientific community and the public, such as regulatory authorities, the industry or academics.

Notes: Purpose - Unleavened flat bread (chapatis and rotis) is staple food of the Pakistani population. Almost 90 per cent of wheat produced in the country is used for chapatis and roti preparation. Present study was carried out to prepare composite flour, assess suitable level of composition. The main aim was to increase the mineral content of the diet, as they are deficient in the diet of the Pakistani people as for other developing countries. Design/methodology/approach - Composite flours were prepared by replacing wheat flour with 8, 16, 24, 32 and 40 per cent soy flour. Composite flour and chapatis were analysed for mineral and phytate contents. Sensory evaluation (color, flavor, taste, texture, folding ability and chewing ability) of chapatis was also carried out to assess acceptance of suitable level by the consumers. Findings - The statistical analysis of data obtained showed significant increase in minerals (Fe, Zn, Cu, Mn, Ca and Mg) and phytic acid content of flour. Significant decrease in phytate was found during the baking of chapatis. Chapatis were found acceptable by the panel of judges up to 24 per cent supplementation of soy flour. To combat mineral deficiency in developing countries composite flour technology can use as replacement of mineral salts fortification. As in case of composite flour natural source of nutrient are used. Practical implications - Soy supplementation of wheat flour can be successfully done through flourmills and small-scale grinders as it causes no problem in milling operations. Originality/value - The research carried out is one of outstanding type as no such research was done earlier. Phytate besides minerals was also given due consideration in same study which is one of chelating agent found in plant source of minerals.

Notes: Purpose - To enlighten the food consumers and drug users as to some of their incompatibilities. Design/methodology/approach - Examples from the literature covering compositions of food-drug, food-drug interactions, and dietary habits were collected from former works. Findings - Major side-effects of some diet(food) on drugs include alteration in absorption by fatty, high protein and fiber diets. Drugs such as methateiate, pyrimethamine, isonicotinic acid and asprin alter the transportation of some nutrients. Nutrient supplementations was found to be beneficial. Research limitations/implications - Possible factors affecting the reactions need to be identified. Practical implications - It helps food consumers and drug users to avoid using some of these materials and also to adopt nutrient supplementation as a better alternative where possible. Originality/value - The knowledge helps food technologists, nutritionists, physicians and pharmacists to serve the public better.

Notes: Purpose - This study aims to address consumer attitudes toward and acceptance of commercial soymilk and dairy yogurts containing varying levels of fat. Design/methodology approach - A convenience sample was used, consisting of 185 students from a university in northern Louisiana. Four yogurts (soymilk yogurt, full fat dairy yogurt, low fat dairy yogurt, and non-fat dairy yogurt) were evaluated. A 9-point hedonic scale was used to evaluate each yogurt for overall acceptance. Questionnaires were used to ascertain consumer knowledge of the benefits of soy, attitudes toward soymilk yogurt and demographic characteristics of subjects. Findings - Acceptance scores for soymilk yogurt were significantly lower than scores for traditional dairy yogurts ( p〈0.0001). Consumer attitudes regarding the health benefits of soy correlated with overall acceptance of soymilk yogurt (r=0.29; p〈0.0001). Results indicate that college students are unaware of the health benefits of soy, and presently prefer traditional dairy yogurt to soymilk-based yogurts. Originality/value - The results of this study provide useful information to nutritionists working with a college-aged population. In addition to promoting healthy, convenient snacks, the education also should include information on the positive aspects of soy and its incorporation in the diet through tasty methods.

Notes: Purpose - In Brazil there is a lack of food composition data and the nutrition professionals frequently need to consult compiled tables of international reference. It is known that the extrapolation of international food data to the regional level is not accurate and requires caution because it may result in nutritional problems. Thus, the purpose of this work was to determine and compare the organic-mineral content of the main Brazilian cereals and legumes with those of the available reference in this country. Design/methodology/approach - The chemical composition of the samples was examined according to AOAC methods. The energy value for each sample was calculated using the specific Atwater energy factors. Findings - The moisture as well as lipids and ash content were found to accord with the consulted bibliography for most of the samples. The protein values were the same as those found by some authors and different from others. Originality/value - The results obtained showed the need for elaborating a Brazilian food composition table able to better reproduce the real nutritive value of food produced in this country.

Notes: Purpose - This study seeks to investigate the effect of palm-based phytonutrient complex (PPC) on stress-induced gastric lesions and accompanying changes in the gastric acidity and gastrin level. Design/methodology/approach - A total of 40 rats were divided between a control group that was given a vitamin E deficient diet and a treatment group that was given a vitamin deficient diet with oral supplementation of PPC at 60?mg/kg body weight for 28 days. At the end of the treatment period half of the number of rats were subjected to restraint-stress for two hours for four consecutive days. Following stress exposure, blood was taken for measurement of gastrin level, after which all the rats were disposed of. The gastric acid was collected for measurement of acid concentration, while the stomachs were opened along the greater curvature and examined for lesions. Findings - Rats exposed to stress developed hemorrhagic gastric lesions. PPC supplemented rats had fewer gastric lesions compared with their respective control group. Stress without supplementation with PPC also caused a reduction in the gastric acid concentration and the serum gastrin levels. Compared with their corresponding controls, the pre- and post-values of gastric acid and serum gastrin concentration in rats with PPC supplementation remained comparable. Originality/value - Stress is an identified risk factor for the development of gastric lesions. The current study showed that PPC was able to reduce the development of gastric lesions induced by stress and blocks the stress-induced changes in the gastric acid concentration and gastrin level. It is possible that part of the protective effect of PPC in stress is through maintenance of the normal gastrin level, which results in the maintenance of gastrin trophic action in the gastric mucosa.

Notes: Purpose - Yoghurt consists of approximately 60 per cent of per capita dairy consumption of Iranian people. Iranian dairy factories use commercial starters which are expensive in yoghurt production. Moreover, yoghurt produced by these starters does not completely meet the taste of Iranian consumers. The aims of this study are to produce well qualified yoghurt from isolated native starters and to evaluate microbial, chemical and organoleptic characteristics of products. Design/methodology/approach - The microflora of Iranian native yoghurts were isolated, purified and identified. The isolated strains were used as starter for the production of yoghurts. Sensory evaluation and measurement of pH, acidity and acetaldehyde content of the samples were carried out. Acidity, pH, acetaldehyde content, and microbial population of the best samples were measured during 21 days of cold storage. SPSS software was used for statistical analysis. Findings - During the above mentioned storage period, acidity and acetaldehyde content increased significantly (p?〈?0.05). Significant decreases (p?〈?0.05) were observed in pH and microbial population. No significant difference in organoleptic characteristics (taste, smell and texture) were found after 21 days of cold storage. Originality/value - Yoghurt production by native starter cultures instead of commercial ones is beneficial in respect of both economic and organoleptic aspects. The results indicate that the use of isolated native yoghurt starters in manufacturing yoghurt can be satisfactory and can also be extended to the production of yoghurt on an industrial scale.

Notes: Purpose - Fungal growth on UF-Feta cheese is one of the most important factors of consumer dissatisfaction in Iran. Propionibacterium shermanii metabolites was used as a biopreservative to retard this inconvenient. This research was done to determine the concentration of the metabolite that increases cheese shelf life with no adverse effect on sensory properties. Design/methodology/approach - The cheese was manufactured according to the methods used in the Iranian UF-Feta cheese dairy plants. The metabolite was used in the order of 0.5 and 1 per cent (w/w) of retentate weight. After incubation while reaching the required pH, cheese samples were stored at two temperatures including 4 and 25 degree C in which analysis was done during a period of 90 and 70 days respectively. Effect of the metabolite on shelf life (absence of visible fungi growth), total viable fungi, microbial load, pH as well as sensory properties including taste, odour, colour and overall acceptability was compared with the control (untreated sample). Findings - Results showed that the shelf life duration of the cheese was extended by approx. 35–43 per cent. Total viable fungi was most efficiently reduced using the metabolite but there was no significant differences in microbial load. Addition of the metabolite didn't affect pH of cheese at either temperatures compared with control. Results of sensory evaluation showed that the taste and odour of cheese containing 0.5 per cent of the metabolite was preferred as compare to the others (p〈0.1). The intervension had no effect no effect on colour scores of cheese. The texture of control was better than the others (p〈0.1). Originality/value - In UF-Feta cheese, the presence of fungi represents a major concern for cheese manufacturers. The results indicate that the fungal growth can be minimized using Propionibacterium shermanii metabolites without undesirable effects on sensory properties. The potential of the metabolite to inhibit yeast growth on UF-Feta cheese was a new finding in this research.

Notes: Purpose - The aim of the paper is to evaluate the microbiological and physico-chemical characteristics of fermented pounded yam, a unique and popular food of the Igbominas of Nigeria. Design/methodology/approach - Fresh pounded yam was prepared in the laboratory by a modification of the traditional method, and then fermented for varying periods of time (0-96hrs), also essentially by the traditional method. Analysis was carried out on the products following documented and established procedures. Findings - Data obtained indicated noticeable increases in the populations of all the groups of microorganisms investigated with increases in fermentation time, except coliforms which declined in population after 24 hours. Heating of the samples after each fermentation interval resulted in significant reductions in microbial populations such that coliforms could not even be detected after 24 hours of fermentation. Lactic acid production, an indication of flavour development, and pH drop were highest at 48 hours of fermentation. The samples also became softer with increases in fermentation period. The heated samples were considered safe microbiologically, since they contained neither coliforms nor faecal coliforms. Research limitations/implications - The consumption of fermented pounded yam is encouraged since it is safe microbiologically and develops a desired flavour, while further research should be carried out on the nutritional benefits. Practical implications - The findings here suggested that adequate heating after fermentation is necessary to eliminate any potential microbial contamination, and for full flavour development. Originality/value - The results of this research contribute to the knowledge of fermented foods, especially those that are indigenous to Nigeria and West Africa.

Notes: Purpose - The aim of the study is to integrate food hygiene into quantity food production systems. Design/methodology/approach - The present study illustrates the concepts of food hygiene and standard operation of food production systems in detail, and it integrates both of these concepts evidencing that an integrated system can be used as a primary function of every establishment with regard to serving food safely. Findings - A successful food hygiene system must consist of four components: maintaining safe conditions for the food from the time of purchasing to the time it is served to the customer, development of hygienic behavior in the employees that come in contact, in any way, with the customers' meal, maintaining clean and sanitary facilities, and application of an adequate Pest Control Management system. Originality/value - By integrating food hygiene into the operational systems, a powerful message will be sent to the personnel; that food hygiene is a primary function of the establishment and must at all times be enforced.

Notes: Purpose - The objective of this study is to examine the dose-response effect of inulin on mineral absorption and faecal short-chain fatty acids concentration in formula-fed infants. Design/methodology/approach - The effects of inulin on faecal short-chain fatty acids and minerals absorption in 36 healthy, formula-fed infants given three different doses of inulin (0.75g/d, 1.00g/d, and 1.25g/d) were studied using complete randomized design. Acetic, butyric, propionic and lactic acids were analysed using gas chromatography. Findings - No significant (p〈0.05) difference was observed in the infant faecal short-chain fatty acids contents during the basal period, the intake period and the washout period. A significant (p〈0.05) increase in per cent apparent absorption, per cent apparent retention and net retention of iron were seen in infants supplemented with 1g/day inulin. A significant (p〈0.05) increase in per cent apparent retention and net retention of Magnesium was also seen in infants supplemented with 0.75, 1 and 1.25g/day inulin. A significant (p〈0.05) increase in per cent apparent absorption and net retention of Zinc was seen in infants supplemented with only 0.75g/day inulin. No significant improvement in calcium, or copper absorption or retention was observed in all the doses of inulin studied. Originality/value - Most previous studies were conducted on adults and adolescents.

Notes: Purpose - Wheat is considered nutritionally poor, due to deficiency of essential amino acids such as lysine and threonine, whereas fenugreek (Trigonella faenum graecum L.) flour has a high protein content (25 per cent), lysins (5.7g/16gN), soluble (20 per cent) and insoluble (28 per cent) dietary fibre besides being rich in calcium, iron and beta-carotene. Fenugreek seeds contain 20 per cent soluble fibre (gum), which can act as functional agent in wheat dough. The presence of bitter saponins in fenugreek seeds limits their acceptability in foods. However, it has been possible to debitter fenugreek seeds by using various domestic processing methods. Therefore, their use can be exploited as functional and nutritional food as well as therapeutic agents. Hence, in the present study efforts have been made to develop wheat-fenugreek-based health bread. Design/methodology/approach - In commonly grown varieties of wheat, namely WH-423, and fenugreek namely Pusa, early bunching was obtained. Fenugreek seeds were divided into three portions. One portion was left unprocessed (raw), while the other two portions were soaked (12hr at 37?C) and germinated (48hr at 37?C) separately. Soaked and germinated samples were dried at 55-60?C. Dried samples of raw, soaked and germinated seeds were ground to fine powder. Fenugreek seed powder (raw, soaked and germinated) was blended separately with wheat flour at different levels, namely 5, 10, 15 and 20 per cent. Breads from control and supplemented flours were baked in replicates. Baking, organoleptic and nutritional characteristics were analysed in the control and supplemented breads. The data were statistically analyzed in complete randomized design for analysis of variance according to the standard method. Findings - Supplementation of wheat flour with fenugreek flour from 5 to 20 per cent levels increased the protein, lysine, minerals and fibre contents of bread. Additions of fenugreek (raw, soaked and germinated) up to the level of 15 per cent produced bread with a satisfactory loaf volume and other sensory quality attributes (crumb colour, crumb texture, taste etc.), whereas the 20 per cent level of supplementation caused a depression effect in loaf volume and the breads were found to be bitter in taste, However, among the various supplemented breads, germinated fenugreek flour-supplemented bread at 15 per cent level showed satisfactory baking and organoleptic characteristics and contained an appreciable amount of protein (24 per cent), total lysine (3.02g/100g protein), dietary fibre (12.04 per cent) and minerals. Practical implications - Fast food are becoming as popular, as in developing countries. Keeping this fact in view, in the present study, health breads were prepared. The developed product had good acceptability, was nutritionally rich and had therapeutic value. So, these can be considered for commercialization. Originality/value - As fenugreek seeds contain 20 per cent soluble fibre (gum), and 5.7g/16gN lysine contents, the soluble fibre of fenugreek seeds has been reported to reduce blood sugar and cholesterol levels. Therefore, their use can be exploited in the development of health foods.

Notes: Purpose - This study aims to evaluate the use of vacuum impregnation (VI) for developing vitamin E fortified fresh-cut apples (Fuji). Design/methodology/approach - A 20 per cent high fructose corn syrup (HFCS) or edible coating materials of 1 per cent hydroxypropyl methylcellulose (HPMC) and 1 per cent calcium caseinate (CC) were used to make VI solutions, and 0.4 per cent a-tocopherol acetate, 7.5 per cent gluconal cal\tf="Pi3" \char"31 (GC) and 0.04 per cent zinc lactate (ZL) were incorporated into the VI solutions. Vitamin E content, color, and selected physicochemical properties of fortified fresh-cut apples were analyzed. Findings - Results showed that VI treatment with 20?per cent HFCS solution containing 0.4?per cent a-tocopherol acetate increased vitamin E content up to 21.8?mg in 100?g of fresh-cut apples, while 12.0?mg and 20.2?mg vitamin E were achieved when using 1?per cent HPMC or 1?per cent CC as VI solutions, respectively. Calcium and zinc content were also increased to 146.6?mg and 1.7?mg in 100?g of apples, respectively, when adding 7.5 per cent GC and 0.04 per cent ZL along with the vitamin E into the VI solutions. Use of HFCS, HPMC and CC as VI solutions resulted in different effects on the physiochemical properties of fresh-cut apples. While HFCS is promising for vitamin E fortification and retention of natural apple color, HPMC and CC can be used to achieve similar vitamin E fortification with the least impact on the soluble solids and moisture contents of apples. Originality/value - The study demonstrates that there is great potential for developing high quality, vitamin E and minerals fortified fresh-cut apples using vacuum impregnation technology, thus further enhancing the health benefit of the apples.

Notes: Purpose - This study aims to report on the nutritional profile of preschool children of 4 to 5 years. Design/methodology/approach - The data on raw food intake of the randomly selected subjects were collected by 24hr recall method for three consecutive days and the mean was taken. Daily intake of various nutrients by each subject was calculated using MSU Nutriguide and this was further compared with RDA recommended by ICMR to assess the adequacy of their diets. Findings - The analysis revealed that the intake of protein, fat, calcium, thiamine, folic acid and vitamin B12 was more than or equal to Recommended Dietary Allowances (RDAs) as recommended by the Indian Council of Medical Research, while the intake of energy, iron, vitamin C, niacin and riboflavin was less than their respective RDAs. The intake of ß-carotene was marginally adequate. Boys consumed significantly more amount of energy and folic acid than girls. Research limitations/implications - A large number of samples could not be taken owing to practical difficulties. Originality/value - The study is original and innovative. The findings are useful for the policy makers and nutritionists who have to implement supplementary feeding programmes.

Notes: Purpose - Aims to extract Rice bran oil (RBO) from Pakistani cultivar Basmati-385 for efficient use of local rice industrial waste, i.e. rice bran to reduce the import of edible oil and to evaluate the suitability of RBO in baked products by making cookies. Design/methodology/approach - RBO was extracted from stabilized rice bran by solvent extraction. The RBO obtained was analyzed for different quality parameters and further applied into baked products such as cookies at various levels, i.e. 0, 25, 50, 75 and 100 per cent, by gradually replacing normal shortening to check its suitability as a shortening and its effectiveness in extending the shelf life of product due to its natural antioxidants. Five treatments of RBO and normal shortening (NS) (T1?=?100 per cent NS +?0 per cent RBO, T2?=?75 per cent NS +?25 per cent RBO, T3?=?50 per cent NS +?50 per cent RBO, T4?=?25 per cent NS +?75 per cent RBO and T5?=?0 per cent NS +?100 per cent RBO) were used to prepare cookies and 45 days, storage study was conducted. Findings - Various treatments and storage have a highly significant effect on moisture, fat and NFE content of cookies. Protein content of cookies remained unaffected by changing treatments. During 45 days, storage moisture, protein, fat and NFE content decreased significantly. Physical studies revealed increase in width and spread factor of cookies, while thickness was reduced, gradually with the proportionate increase of RBO. There was significant decrease in quality score of cookies for color, taste, flavor, crispness, texture and overall acceptability. Treatment T3 (50 per cent NS +?50 per cent RBO) got the highest score for all the sensory attributes. Practical implications - The present study suggests that T3 (50 per cent NS +?50 per cent RBO) can produce superior quality cookies to prove the effectiveness of RBO as bakery shortening. Originality/value - Although Pakistan is an agricultural country, unfortunately 71 per cent of the country's edible oil requirements are met through the import of edible oil. In the present project the possibility of RBO extraction from local variety was evaluated. In this way, if fully explored, RBO can become the fourth indigenous source of edible oil.

Notes: Purpose - Iron deficiency is the number one nutritional disorder in the world and is quite common in Pakistan. Iron deficiency anaemia may result from a low dietary intake, inadequate intestinal absorption, excessive blood loss, and/or increased needs. While iron overload is also responsible of number of diseases. The normal iron status of our body is usually maintained by controlling amount of iron absorbed from food. The recommended daily allowance (RDA) for adult male and female in the age from 19 to 50 years is 8 and 18mg, respectively. While RDA above 50 years is it for both genders i.e. 8mg (NIH, 2002). Nutritional status of dietary iron was estimated to combat the iron related diseases in Pakistani population. Design/methodology/approach - Food samples were collected from major cities/districts of the country using market basket method. Daily diets were prepared and analyzed for iron contents using Atomic Absorption Spectrometry (AAS). Findings - An average value of iron concentration was measured to be 52±15µg/g, which leads to an average daily dietary intake of 31±9.5mg/d, with a variation of 12 to 52mg/d. The estimated values of our daily iron intake are about 2 times higher than the recommended daily allowance set by international committee of radiological protection (ICRP) and US food and nutrition board (FNB). Apparently our diet seems enriched in iron contents. But its bioavailability may be low due to dietary composition. Major portion of our diet is based on plant food (71 per cent), followed by milk products (17 per cent) and other miscellaneous items, whereas consumption of animal food is only 5 per cent. This dietary composition and our food intake habits in the presence of iron inhibiters (i.e. phytate in plant food, tannin and polyphenols in tea and calcium) could be the leading cause of iron deficiency anemia among the Pakistani population. Originality/value - Iron deficiency anemia is quiet common and cause of concern in Pakistan. The findings of the study indicate that bioavailability of iron to Pakistani population can be enhanced/improved with slight alterations/adjustments in dietary habits.

Notes: Purpose - This article focuses on some of the reported medicinal values of bitter melon, an exotic vegetable forming part of the cuisine of various countries. Design/methodology/approach - Available data in the literature strongly support the anti-hypoglycaemic properties of Bitter melon. A literature view was carried out and the data were used to validate our findings regarding the effects of extracts of Momordica charantia on uptake of sugar. Findings - Our work adds on to the growing evidence of the anti-diabetic properties of bitter melon. Practical implications - In view of evidence reported in the literature regarding the medicinal properties of vegetables, the importance of vegetables in a well balanced diet should therefore be strongly advocated. Originality/value - This paper adds on to the evidence of the use of Momordica charantia as a medicinal plant in traditional medicine in the control of blood sugar level.

Notes: Purpose - This pilot study seeks to evaluate whether dietary intervention combined with an oral formulation of sodium salicylate, mineral and vitamin supplements (CV247) altered the rate of progression in patients with malignant disease. Design/methodology/approach - A total of 37 patients were recruited from March 2001 to November 2001 and ran to September 2004. All patients had progressive malignancy at trial entry (def: at least two consecutive increases in tumour markers 〉10 per cent or radiological progression). Patients, were recommended a diet rich in fresh fruit, vegetables, low in saturated fats, salt and man-made chemical supplements such as colours and preservatives together with oral CV247 (sodium salicylate, copper gluconate, manganese gluconate and ascorbic acid). Dietary compliance was monitored, from a subgroup, by monthly interviews with the trial dietitian recorded on a linear analogue scale. Quality of life was measured by monthly completion of a Rotterdam symptom check-list questionnaire and tumour progression measured by radiological assessment and/or tumour markers. Findings - The treatment was well tolerated and compliance with the diet was enthusiastic. Of the two patients with progressive metastatic ovarian carcinoma, one had stabilisation in the disease for five months, the other for 20 months. The 28 heavily pre-treated patients (including those with metastatic prostate cancer) had no significant clinical response (52 per cent stabilisation for 3.5 months). Of the seven patients with early prostate cancer (no metastasis or hormonal therapy, with pre-trial increasing PSA), six (86 per cent) had stabilisation of PSA with a mean duration of 17.2 months. Originality/value - This study succeeded in evaluating whether dietary intervention combined with an oral formulation of sodium salicylate, mineral and vitamin supplements (CV247) altered the rate of progression in patients with malignant disease.

Notes: Styrene-acrylic resin paints having a pigment volume concentration of 31 per cent and consisting of a constant level of ethylene glycol, titanium oxide, water, rheological agent, inhibitor and defoamer and variable levels of dispersant (x), anticorrosion pigment (y) and wollastonite (z) were prepared. Such emulsion paints were applied to the flat carbon steel test panels. The dried paint films were subjected to various standard anticorrosion tests. The results obtained showed different types of relationship between the anticorrosive behaviour of the paints and variables x, y and z. The antifouling properties of the paint films were obtained through corrosion tests in a marine-industrial environment at ambient temperatures.

Notes: The effects of natural Artemisia oil on the corrosion of steel in molar hydrochloric acid were studied by the measurements of weight loss, electrochemical and EIS polarisation. The results obtained revealed that Artemisia oil reduced the rate of corrosion. The corrosion inhibition efficiency increased with the increase of inhibitor concentration. Potentiodynamic polarisation studies clearly revealed that the presence of the natural Artemisia oil did not alter the mechanism of the hydrogen evolution reaction and acted essentially as a cathodic inhibitor. Good agreement between gravimetric and electrochemical polarisation results was noted. The effect of temperature on the corrosion behaviour of steel in 1M HCl, with and without the oil in the temperature range of 308-353?K, indicated that inhibition efficiency increased with temperature. The adsorption of Artemisia oil on the steel is followed by Frumkin adsorption isotherm.

Notes: Oligomer (semicarbaside-phethalic acid) and its complexes with Fe(III), Co(II) and UO2(II) chloride were prepared and characterised using elemental analysis, spectral (1H NMR, infrared and UV-Vis) and magnetic measurements. Extensive studies suggested that the Fe(III), Co(II), and UO2(II) oligomer complexes were octahedral dimers. Thermal analyses (thermal gravitational analysis (TGA) and differential thermal analysis (DTA)) of the complexes were carried out and the relevant activation energies were calculated. The effect of the oligomer on the corrosion of iron metal in acidic media (2?M H2SO4) was studied. It was found that the oligomer inhibited the corrosion of iron metal in acid media. The corrosion inhibition efficiency of these compounds was calculated based on weight loss and potentiostatic measurements.

Notes: A series of novel halamine polymers known as pyrimidinone biocidal polymers were prepared by reacting poly-4-vinylacetophenone with urea and benzaldehyde to form 1H,3H,6H,-4(4'-polystyreno)-6-phenyl-pyrimidin-2-one, which on chlorination yielded 1Cl,3H,6H,-4(4'-polystyreno)-6-phenyl-pyrimidin-2-one. The same reaction was also carried out using the derivatives of benzaldehyde such as p-nitrobenzaldehyde and p-methoxybenzaldehyde under the same reaction conditions. .

Notes: Studies were carried out on the modification of silica with 3-aminopropyltriethoxysilane in various solvents. The modified silica obtained was subjected to comprehensive evaluations of physicochemical properties, including the bulk density and the capacities to absorb water, dibutyl phthalate and paraffin oil. Particle size, particle size distribution, uniformity of the particles, tendency to form agglomerates, as well as particle surface morphology, were also examined using SEM and dynamic light scattering (DLS) techniques. The properties of the modified silica obtained were compared to evaluate the effects of the solvents used during the surface modification of the silica.

Notes: The influence of addition of the natural material, jojoba oil, on the corrosion of iron in molar hydrochloric acid had been studied using weight loss measurement and electrochemical polarisation methods. It was found that the corrosion rate was significantly reduced in the presence of jojoba. It was also found that the corrosion inhibition efficiency increased with the concentration of the jojoba oil to attain a 100 per cent inhibition at 0.515?g/l of jojoba oil, indicating that jojoba oil was an excellent corrosion inhibitor. The effect of temperature on the corrosion behaviour of iron indicated that the inhibition efficiency of jojoba oil decreased very slightly with the rise of temperature. It was found that the adsorption of jojoba oil on the iron, which followed the Frumkin isotherm, was the main cause to the corrosion inhibition.

Notes: Several new arylazopyrazolo[1,5-a]pyrimidine derivatives were obtained from 4-arylazo-3,5-diaminopyrazoles. The application and dyeing characteristics of the dyes synthesised were also reported.

Notes: A range of methine dyes has been synthesised by condensation of electronegative active methylene compound, 4-nitrophenylacetonitrile with substituted benzaldehydes. The electronic absorption spectroscopic properties of the dyes were investigated. It was found that in general, substituents on the aromatic aldehyde moiety had a significant effect on the visible absorption maxima of the dyes.

Notes: This paper reports on the preparation of six formulations (G1-G6) containing mixed soap greases based on cotton soap stock, aromatic extract, heavy alkylate and lube base oil. The physicochemical properties of these ingredients were characterised. The consistency, dropping point and mechanical stability of the formulated greases were assessed and tested in accordance with the National Laboratory for Grease Institute standards, and compared with the Egyptian Standards. The properties of the formulated grease G4 proved to be the best. The work reported also includes preparation of itaconyl-o-tolidine-, itaconyl bisaniline- and itaconyl m-phenylene- amide polymers. The structure of these polymers was investigated using infrared spectroscopy, micro analysis and gel permeation chromatography. The polymers prepared were evaluated as antioxidants for the optimum formulated grease G4. The study revealed that the itaconyl m-phenylene amide polymer was a weak antioxidant, while itaconyl bisaniline- and itaconyl-o-tolidine amide polymers showed good anti-oxidation property.

Notes: The inhibition of corrosion of steel in 1?M HCl solution by newly synthesised pyrazole derivatives has been studied by weight loss and polarisation techniques at 308°K. Its inhibitory power is compared to N,N'-bis(3,5-dimethylpyrazol-1-yl-methyl)-pentanolamine (Bipyr). The results obtained reveal that tripyrazole exhibits a good protection. Inhibition is found to increase with increase in inhibitor concentration. The inhibition behaviour of the compound has been explained on the basis of molecule size and charge density of adsorption active centres. The adsorption phenomenon obeys the Langmuir adsorption isotherm model.

Notes: The effects of polyol types, polyol molecular weights, NCO/OH molar ratio, solvent types, and resin solid contents of the one-part ambient temperature curing adhesives were studied. The results showed that the one-part ambient temperature curing polyurethane prepared had fast rate of setting and good bonding, meeting the requirements of a typical structural adhesive.

Notes: Slow release insecticidal paint formulations had been prepared by incorporating deltamethrin, an additive to impart insecticidal property to the paint formulation. The effects of the mode of incorporation of deltamethrin on the retention of the insecticide in the paint matrix, on drying, had been studied. Deltamethrin had been introduced (1 per cent by wt) in the grind and let-down portions of the paint formulation. Extraction and high performance liquid chromatography studies of the insecticide had been carried out. It has been found that after drying, the paint samples contained a very high concentration of deltamethrin where the insecticide had been added in the grind portion instead of in the let-down portion of the paint formulation.

Notes: Linseed oil was employed to modify polyesteramide resin via the condensation of hydroxyethylamide derivatives of fatty acids of linseed oil, i.e. {N, N'-bis(2 hydroxylethyl) linseed amide} and phthalic anhydride and dicarboxylic acids such as adipic acid, succinic acid and sebacic acid. The polyesteramide resins obtained were tested for their application as a vehicle/binder in the preparation of surface coatings. The resins obtained were also characterised for their physico-chemical properties, film forming properties and chemical resistance.

Notes: New types of amide polymers have been prepared and evaluated as corrosion inhibitors for steel protection. Such polymers included o-, m-, and p- itaconyl phenylene amides, itaconyl o- tolidine amide and maleiyl phenylene amide polymers. The polymers were prepared by condensation of equimolar ratios of diamine with itaconic or maleic acids in non-polar solvents of high boiling point (〉135°C) using the Dean and Stark apparatus. The amide polymers obtained were characterised and their structures confirmed based on the micro-analysis of C, H, and N, the estimated amount of water liberated from the condensation reaction, the IR spectrophotometric measurements and the molecular weight determined by gel permeation chromatography (GPC). The amide polymers obtained were incorporated into paint formulations as corrosion inhibitors for steel protection.

Notes: A series of azo dye systems, namely, 5-arylazo-pyridin-2-one dye systems (5a-k), was synthesised and characterised. The effects of the structural configuration of the pyridinone dye systems on the shifts of the ultraviolet-visible absorption maxima were investigated. The structural effects of the polyfunctionally substituted pyridinone dye systems on the intensity of colour and fastness properties of the dyed fabrics were also discussed.

Notes: Long afterglow Sr2MgSi2O7 (SMS) phosphor was prepared by Douby's methods at high temperature and reductive atmosphere. The excitation and emission spectra of this phosphor showed that both had broad bands and that the main emission peak at 469?nm was due to 4f-5d transitions of Eu+2 and implied that the luminescence centres Eu+2 occupied the Sr+2 sites in the Sr2MgSi2O7 host. The phosphor doped only with Eu ions did not demonstrate the long afterglow phenomenon, but when co-doped with Dy+3 ions in the SMS matrix, significant long afterglow was observed.

Notes: The market for ultraviolet curing technology has been growing at double-digit rates in the last 10 years. The main reason for such a rapid technological growth of UV curing is its unique process characteristic, which allow UV-coating to be applied on virtually any substrates, including plastic, metal, composite, wood, paper, leather, vinyl, glass, magnetic recording tape and even human teeth. The original driving forces behind the commercialisation of UV-technology were energy saving and freedom from solvents. These benefits are complemented by high productivity and subsequently higher profits that can be achieved with the increased line speed, just-in-time benefits and immediate "pack and ship" capabilities. This paper gives a review of the development of the UV curing technology, with emphasis placed on relevant chemistry.

Notes: Commercial pressure has forced improvements in the reduction of press down time. One restraining factor for the flexographic printing process has been the lack of predictability and consistency. The results of a factorial designed experiment, are reported in this paper. Investigations into the complex interactions of many variable factors that take place during the printing process were carried out. Various statistical methods were employed for the design of the experiment and for the interpretation of experimental data generated. The results of the investigation have been used to optimise the flexographic printing techniques to significantly manipulate the properties of various production components for the end-use application to enhance the plates printing performance and consistency.

Notes: Zinc potassium chromate (4Zn·O4CrO3·K2O·3H2O) was prepared using zinc salt solution, sodium hydroxide and potassium dichromate solutions. The pigment synthesised was investigated by various methods. Upon heating, this pigment underwent decomposition to form ZnCr2O4, K2CrO4 and ZnO. The pigment obtained was successfully used in the preparation of glaze and then on a tile. The L*, a* and b* values of the fired glaze were 71.607, 2.695 and 67.327, respectively.

Notes: Historically, paints designed to protect steel and other metals have been formulated using anticorrosive chromate pigments, which are currently under environmental restrictions. During the investigation reported here, various phosphate compounds. The pigments prepared were characterised using a variety of chemical and spectrophotometric methods of analysis including emission atomic absorption, transmission electron microscope, X-ray diffraction, in addition to thermal gravimetric analysis. The pigments were also evaluated according to relevant international standard testing methods. The phosphates prepared were incorporated into anticorrosive paint formulations, to replace the imported zinc phosphate pigment, containing medium oil alkyd resin, and melamine formaldehyde resin. Paint films obtained were tested in artificial seawater for 28 days for anticorrosion properties. The results indicated that the paint films had good anticorrosive protection properties that could be attributed to the pigments prepared and the resins used.

Notes: This paper presents a method for the determination of the kinetic parameters for the oxidation-reduction hardening reactions of unsaturated polyesters with styrene. The method was based on the measurement of the change in the specific internal electric resistance during the hardening. This paper discusses the accelerating effects of ferrocene and some of its derivatives (acetylferrocene, benzoylferrocene, 1,1'-diethylferrocene) on the hardening of unsaturated polyesters.

Notes: Molecular charge transfer complexes of some thiazolazo compounds with Cu2+, Ni2+, Co2+, Zn2+, La3+ and Zr3+ complexes with iodine have been studied spectrophotometrically. The stoichiometry and formation constants of the complexes formed were determined. The effect of solvents, effect of buffer (pH 2-11) and the energy of transition (E) were calculated. The optimum conditions favouring the formation of the coloured complexes were extensively studied by Beer's law and Ringbom method. Furthermore, the spectral characteristics, IR, UV-Vis and 1H NMR of the complexes were investigated and discussed in terms of donor molecular structure.

Notes: Recent years have seen a rapid development of ink-jet printing technology. This paper reviews the state-of-the-art in ink-jet printing technology and gives an overview of ink-jet printing into the immediate future. The focus is placed on various applications of jet printing technology. The potential of applying jetting technology in the conventionally surface coating dominated applications will also be explored.

Notes: Impermeability tests had been carried out to compare the moisture resistance of two wood finish paints available on the Cameroonian market. Two types of paints had been used namely, an oil-based paint and an emulsion paint, both manufactured in Cameroon by SMALTO Company. It appeared that the oil-based paint gave better protection to wood in wet environments, areas with strong pluviometry (where the quantity of humidity in the air is very high). The emulsion paint was found to be suitable for use for interior decorative purpose. It was suggested that a glycerophthalic lacquer could be used for wood finishing in areas subjected to the emissions of water vapour or requiring frequent washing (bathroom, kitchen, WC, etc.). In addition, the number of coating layers should be increased to enhance the moisture resistance of such paint films.

Notes: UV curing technology has a number of unique advantages over the conventional curing technologies. However, until very recently, there had been few successful examples of the application of UV curing technology in ink-jet printing. Several reasons, including the requirement of low viscosity for ink-jet printing inks, were responsible for the lack of development of UV curable ink-jet printing inks. This paper describes, in some details, the challenges that a formulator had to face in developing UV curable ink-jet printing inks, together with information on the status quo of UV curable ink-jet printing technology.

Notes: A soluble polyschiff base containing triarylamine unit in backbone was synthesised by condensation polymerisation. The hole transport properties of such polyschiff base were studied. The mobility of the hole carrier in the polyschiff base film was also measured and found to be µ=1.68×10-4?cm2/V?s by means of time of flight technique. A polymer electroluminescence device was prepared with the polyschiff base used as hole transporting moiety by spin coated.

Notes: Development of new radiation-curable materials for the application in radiation curing technology is of significant importance. Most of the commercially available radiation-curable resins are derived from synthetic raw materials. The synthesis of acrylated, epoxidised soybean oil (ESO) from ESO had been carried out by reacting acrylic acid with the oxirane group in ESO. The acrylated ESO products were characterised using a variety of analytical techniques. Thus, the oxygen value, the iodine value, the acid value and the infrared spectra of the acrylated ESO products were obtained. Pigmented acrylated ESO systems were prepared and found to cure on exposure to UV radiation.

Notes: New N-halamine polymeric compounds were prepared by reacting cyanuric acid and polyacrylonitrile. Grafting of acrylonitrile monomer onto cotton linters was carried out and the product was reacted with cyanuric acid and finally was chlorinated. Cyanoethylation of polyvinyl alcohol was performed using acrylonitrile monomer to give polyvinylcyanoethyl ether, which, in turn, was reacted with cyanuric acid. The biological activity of the various chlorinated compounds obtained was examined against Gram (+) and Gram (-) bacteria using columns and dishes methods. A high disinfecting power of the chlorinated compounds obtained was observed. Thus, the bacteria was deactivated after the first cycle without contact with the product. All of the compounds prepared were insoluble in water and most of inorganic solvents. These compounds were also found to be very stable and did not decompose to give any toxic compounds. Thus, the chlorinated compounds prepared had no harmful effects on humans.

Notes: Ricebean (RB-32) contained significantly (p 〈 0.05) higher amounts of total soluble (5.6g/100g) and non-reducing sugars (5.0g/100g) than fababean (VH-82-1). On the other hand, the contents of starch and reducing sugars were more in fababean (53.2g/100g; 608.7mg/100g) than those in ricebean (50.7g/100g; 547.3mg/100g). The starch digestibility (mg maltose released/g meal) of whole raw seeds and husk of ricebean and fababean was 30.8; 6.3 and 42.1; 6.3, respectively. Due to soaking, sprouting and dehulling, a significant (p 〈 0.05) improvement occurred in in vitro starch digestibility of both ricebean and fababean. Germination for 24 hours in ricebean and 48 hours in fababean was found to be the best as it could improve the starch digestibility to the extent of 100 to 90 per cent over the control.

Notes: Presoaking treatment of partially defatted soy dhal in water or enzyme (lipase) solution for one, two and four hours decreased the cooking time substantially. When soy dhal was soaked in water for one, two and four hours, it resulted in 0 per cent, 1.24 per cent and 6.17 per cent decrease in cooking time over the unsoaked soy dhals, respectively. Soaking defatted soy dhal in lipase enzyme solution at three different concentrations, i.e. 0.5 per cent, 0.75 per cent and 1.0 per cent reduced the cooking time from 62.96 per cent to 74.69 per cent, over the control (unsoaked soy dhal) depending on the presoaking period. As the soaking period was increased from one to four hours irrespective of the concentration used, decrease in cooking time was observed. Maximum decrease in cooking time was found with soaking in 1 per cent concentration of lipase solution for four hours. There were non-significant differences between the organoleptic scores of water soaked and enzyme soaked dhal. However, sensory scores of soy dhal were slightly improved by lipase enzyme soaking when compared to water soaked soy dhal.

Notes: This article focuses on the selenium (Se) content of 29 legumes and grains available in Mauritius. Selenium was determined using an ultraviolet/visible spectrophotometric method. Results showed that there was considerable variation in the Se content of the legumes and grains that varied from 0.009 ± 0.003µg/g in Dhall Mung (Phaseolus areus) to 1.380 ± 0.003µg/g in Gram Noir (Cicer arietinum). The overall mean Se content of the legumes and grains analysed was 0.231 ± 0.00µg/g. In conclusion, the present study tends to show that legumes and grains are important vehicles of Se intake in the Mauritian diet.

Notes: Cashew apple was used as a nutritional additive in the production of yogurt. The yogurt so produced (CAY-A) had a higher vitamin C content of 53.70g/100ml than both samples B and C with values 14.1/100ml and 19.2g/100ml of vitamin C respectively. The cashew apple fortified yogurt was evaluated for physicochemical parameters like pH, refractive index, dpecific gravity, titratable acidity, ash, moisture, protein and fat and the values 4.10 (pH), 20° Brix soluble solid content, specific gravity 1.023, titratable acidity (0.78g/100ml lactic acid), 0.84 per cent ash, 77.0 per cent moisture, 3.22 per cent protein and 3.2 per cent fat were obtained. The three yogurts produced were presented to ten regular tasters of yogurt for sensory evaluations using Fan Milk yogurt as the reference sample C. Assessors were asked to identify the odd sample. This method was used to determine if ingredient substitution or some other change in the manufacturing process could result in a detectable difference in products. The result obtained indicated that the yogurt into which cashew apple had been added compared favorably with the reference sample in all the attributes evaluated and there was no significant difference at p = 0.05.

Notes: A consumer survey was undertaken to test the efficacy of Zotrim, a herbal preparation commercially available as an over the counter weight loss aid. A total of 48 subjects completed a 28-day trial of Zotrim, taken in tablet form just prior to main meals. The results showed a self-assessed average weight loss of 2.3kg (0.6kg per week). Questionnaire data suggested that subjects ate less at meals and snacked less frequently. The overall findings supported an earlier placebo controlled clinical trial, and provided additional evidence that Zotrim delays gastric emptying and enhances feelings of fullness.

Notes: This study was designed to assess the physical fitness and health status in 36 life-long vegetarians. Besides a general questionnaire a dietary diary was completed and several blood parameters were determined. Physical fitness profile was estimated by testing handgrip strength, leg explosive strength, dynamic abdominal muscle endurance and cardiorespiratory endurance capacity. Body mass and length were measured for the determination of the BMI. The general questionnaire revealed that most of the subjects had healthy lifestyles. Nutritional intakes were not optimal with excess of some nutrients, but equally with some intakes not reaching the recommended daily allowances. Blood profile was normal for all evaluated parameters. Physical performance capacity was rather weak for strength-oriented tasks while a normal cardiorespiratory endurance capacity was measured. Our results indicate that a vegetarian diet is not automatically a healthy diet. Proper food choices need to be made to assure the completeness and to avoid excesses or deficiencies in the diet.

Notes: This study was aimed to estimate and compare the contents of protein and amino acids in raw, boiled and fried fishes of Indian mackerel "kembong" (Rastrelliger kanagurta), sardine (Sardina pilchardus), red tilapia (Oreochromis mossambicusx) and black tilapia (Oreochromis mossambicus). Protein contents of raw mackerel, sardine, red and black tilapia were 8.1±0.0, 8.4±0.1, 9.6±0.4 and 9.0±0.0 percent, respectively. In a boiled fish, the protein contents were 7.9±0.1, 7.7±0.0, 7.5±0.1 and 8.9±0.1 percent, respectively, and for a fried fish the values were 8.6±0.5, 8.9±0.1, 9.1±0.2 and 8.4±0.0 percent, respectively. It was found that there was a significant difference (p〈0.01) in the protein content of the raw fish compared to the heat-treated ones for all the fishes. The study detected 17 components of essential amino acids (lysine, histidine, threonine, valine, methionine, leucine, isoleucine and phenylalanine) and non-essential amino acids (arginine, aspartic acid, serine, glutamic acid, proline, glycine, alanine, cystein and tyrosine) in all the fishes. There was no significant difference in amino acids content among the boiled and fried fishes. In conclusion, heat treatment for five?minutes in boiling water (100°C) and frying for three?minutes in palm oil (160°C) did not alter the quality of protein in all the fishes studied.

Notes: In this study, phytic acid was extracted from Jamaican sweet potato, which has been reported to contain a high phytic acid to zinc ratio and fed to Wistar rats for three weeks. Animals were then sacrificed and blood glucose, intestinal amylase activity and faecal minerals were determined. Blood glucose levels in all the groups fed phytic acid extract from sweet potato or commercial phytic acid were reduced compared to their controls. This lowering was more pronounced in the groups fed phytic acid extract from sweet potato or commercial phytic acid plus zinc supplement. Faecal zinc was significantly higher in the groups fed phytic acid extract from sweet potato compared to the controls in weeks 1 and 2. Supplementation of the diets with phytic acid extract from sweet potato or commercial phytic acid resulted in an increase in the faecal output of iron except for the group that was fed commercial phytic acid plus zinc. Overall, the supplementation of the rat diet with phytic acid extract from sweet potato resulted in a general increase in the output of these faecal minerals.

Notes: Levels of 12 metals (Ca, K, Na, Mg, Cu, Fe, Mn, Zn, Cd, Cr, Pb and Ni) were estimated in 19 different imported brands of unexpired and expired canned dry milk available from local markets. The HNO3/HClO4-based wet digestion method was used for the analysis of the samples by the FAAS technique under optimum analytical conditions. Of the macronutrients, Ca showed highest at 1,144?µg/g in the dry milk from Holland. In the case of micronutrients, Fe showed the maximum level at 119.15?µg/kg in the milk from UK. Cr dominated at 23.19?µg/kg compared with other heavy toxic trace elements. The following order of decreasing concentration was observed for both unexpired and expired milk: Ca 〉 Na 〉 K 〉 Mg 〉 Fe 〉 Zn 〉 Cr 〉 Pb 〉 Cu 〉 Ni 〉 Cd. All the trace elements were found to have 100 per cent incidence of occurrence. The expired milk samples showed enhanced levels of Fe, Zn, Cr and Pb by a factor of 1.2-1.6 on average. The results of the metal contents were compared with those for fresh cow milk. The data were statistically evaluated to find bivariate correlation between the metals in pre- and post-expiry milks.

Notes: This paper describes four simulations of functions found in a commercial dietary analysis program that are designed to be used in education. These include FitDiets, which illustrates the principle of energy balance and "healthiness" of diets, and programs that present a nutritional quiz, a food label and information on dietetic products.

Notes: A survey of the market diseases and aflatoxin contamination of tomato fruits was conducted in Sokoto in northwestern Nigeria in 2001 and 2002, respectively. Rotten tomato fruits sold at five different markets in Sokoto town, located at Central market, Kasuwar daji, Mabera, Minanata and Arkilla were heavily contaminated with moulds. Eight different fungi were found associated with the rotten tomato fruits sold in the five different markets. The associated fungi were Aspergillus niger, Aspergillus ochraceous, Aspergillus flavus, Aspergillus fumigatus, Penicillium citrinum and Helminthosporim fulvum, Curvularia lunata and Sclerotium rolfsii. A. flavus and A. niger have the highest rate of occurrence among the isolated fungi, while S. rolfsii was the least encountered. Pathogenicity tests revealed that of all the isolated fungi, A. ochraceous, A. flavus, Sclerotium rolfsii and P. citrinum were highly pathogenic with the first three leading to rapid disintegration of treated fruits in 3-5 days. A. niger was moderately pathogenic, while H. fulvum was least pathogenic on tomato fruits. Aflatoxins were detected from the sampled diseased-marketed tomato fruits and also from the marketed rotten tomato fruits after autoclaving for 15?minutes at 121°C.