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  • Articles  (151,447)
  • Articles: DFG German National Licenses  (151,447)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (151,447)
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  • Articles  (151,447)
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  • 1
    Electronic Resource
    Electronic Resource
    Viscoelastic Effects on the Diffusion Properties of Curdlan Gels (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 68 (2003), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The diffusion properties of curdlan gels were characterized against its viscoelastic behavior. With increased junction zones involved in rigid crosslinks in higher concentration gels, the three-dimensional structure of curdlan is characteristic. As the gel concentration increases, the intermolecular crosslinking and apparent viscosity increase, reducing mobility of the polymer chains with slower release rates. The scaling laws confirmed that curdlan gel network structure corresponds to that of polymer chains in a good solvent at the semi-dilute regime. Diffusion of the entrapped agent in 6% gels resembled pseudo-controlled release behavior, and a further increase in gel concentration might produce microspheres that support a sustained release.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2003.tb07018.x
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  • 2
    Electronic Resource
    Electronic Resource
    Microencapsulation by Spray Drying of Multiple Emulsions Containing Carotenoids (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Water-in-oil-in-water (W1/O/W2) multiple emulsions with 25% and 35% solids contents were spray-dried producing microcapsules with 3.9:1, 2.6:1, and 1.4:1 biopolymers blend to primary emulsion ratios and 0.25% (w/w) theoretical carotenoids concentration. Microcapsules with better morphology, encapsulation efficiency, and larger particle size were those obtained from higher biopolymers blend to primary emulsion ratios and solids content, but showed relatively higher carotenoids degradation kinetics than microcapsules made with lower biopolymers blend to primary emulsion ratios and solids content, which exhibited poorer morphology, encapsulation efficiency, and smaller particle size. Microcapsules stored at different water activities showed maximum carotenoids degradation at a water activity (aw) of 0.628, with lower carotenoids degradation occurring at lower or higher aw.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb13641.x
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of Protein Size Distribution and Dough Rheology on Hearth Bread Characteristics Baked at Different Processes and Scales (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The present study investigates the effect of flour and dough characteristics on the baking performance of hearth loaves, which are proved and baked without a tin. A number of experiments were performed at different scales. The most significant and consistent observation was a positive relationship between the protein quality and the form ratio of the loaves (height/width), in which the protein quality was evaluated by both large and small strain rheology, as well as by size distribution of the gluten proteins and other protein quality parameters. The volume of hearth loaves and the slice area are complex characteristics because they are combined functions of loaf height and loaf width; the loaf height was positively related to protein quality, whereas loaf width was negatively related. The total effect of this is not obvious. In general, the loaf volume is more strongly related to the loaf width than is the slice area. For the present material, differences in protein quality were not manifested as significant differences in loaf volume, whereas the slice area was positively correlated to the protein quality. The results obtained at different scales of the baking experiment agreed well with each other.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb13646.x
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  • 4
    Electronic Resource
    Electronic Resource
    Extraction of Anthocyanins and Polyphenolics from Blueberry Processing Waste (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The effectiveness of temperature, SO2, citric acid, and industrial juice-processing enzymes (n= 9) for producing extracts of blueberries (Vaccinium corymbosum, cv. Rubel) and blueberry skins that are rich in anthocyanins and polyphenolics were evaluated individually and/or in combination. Enzyme treatment had little effect on total monomeric anthocyanins and on total phenolics recovery. Various combinations of heat, SO2, and citric acid yielded extracts with higher concentrations of ACY and TP than the control. The distribution of anthocyanins and polyphenolics in ‘Rubel’ was also investigated. Anthocyanins existed almost exclusively in the skins, and polyphenolics were mostly in the skins with lesser amounts in flesh and seeds. Skins were also highest in antioxidant activity. All portions contained the same individual anthocyanins but in varying amounts. Cinnamic acid derivatives and flavonol-glycosides were found in the skins and seeds, whereas the flesh contained only cinnamic acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb13651.x
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of Moisture Content of Carrot Slices on the Fat Content, Carotenoid Content, and Sensory Characteristics of Deep-fried Carrot Chips (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Our objective was to develop a reduced-fat deep-fried carrot chip. Moisture contents of the carrot slices were altered, and fat uptake and quality parameters were measured. Decreasing moisture content of carrot slices significantly decreased (P 〈 0.05) the yield, hue∘ value, and fat uptake, and increased the redness value, which correlated with increased carotenoid content, but did not influence chip lightness, yellowness, water activity, and moisture content. Removing 50% of the initial moisture content of the carrot slices decreased the chips' fat content from 57% to 38.5%. Adjusting the moisture level of the carrot slices appears to influence fat uptake and carotene content of deep-fried carrot chips.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb10987.x
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of Calcium Treatment Temperature on Fresh-cut Cantaloupe Melon during Storage (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The effect of calcium treatment temperature on cut cantaloupe fruit during storage was determined. Fruit dipped in calcium solution at 4°C had lower respiration and moisture loss rates than treated fruit at ambient temperature. Calcium treatment lowered lipase activity at both temperatures, but the effect was more notable in fruit treated at the lower temperature where lipase activity was undetectable in the freshly processed fruit and after storage for 24 h. The ability of calcium to confer rigidity to the tissue components at low temperatures, possibly through improved covalent crosslinking, was indicated by viscosity measurements indicating higher values for pulverized cantaloupe melon with added calcium at 4°C than fruit blended under similar conditions at ambient temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb10990.x
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  • 7
    Electronic Resource
    Electronic Resource
    Inhibition of LDL Oxidation by Red Orange (Citrus sinensis) Extract and its Active Components (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Oxidative modification of low-density lipoprotein (LDL) appears to play a pivotal role in atherosclerosis. In the present study the effect of several concentrations of rutin, its aglycon quercetin, cyanidin 3-O-β-d-glucoside, its aglycon cyanidin, hydroxycinnamic acids, and a standardized red orange (Citrus sinensis varieties) extract (ROE) on LDL oxidation was tested. Lipid peroxidation was monitored by conjugated diene formation and by different electrophoretic mobility of native LDL and oxidized LDL. Results obtained in the present study suggest specific effects of flavonoids tested and, in particular, of ROE on the prevention of LDL oxidation involved in the development of cardiovascular diseases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb10992.x
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  • 8
    Electronic Resource
    Electronic Resource
    Machine Vision Analysis of Antibrowning Potency for Oxalic Acid: A Comparative Investigation on Banana and Apple (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Relative antibrowning potency of oxalic acid on banana and apple slices was investigated using a machine vision system. Degree of browning on fresh-cut surfaces was evaluated visually and quantitatively by observing changes of CIE L* values and evaluating temporal changes in color spectra based on experimental variables, oxalic acid concentration, and storage time. Browning inhibition was most prominent on banana and apple slices treated with oxalic acid solutions at concentrations of 60 and 5 mM, respectively. Oxalic acid was a more potent antibrowning agent compared with other structurally related acids. Average residual oxalic acid levels in the tissues for an effective antibrowning activity were measured.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb10999.x
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  • 9
    Electronic Resource
    Electronic Resource
    Sensory Profiling of Chardonel Wine by Descriptive Analysis (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The objectives of this study were to develop descriptive terms for Chardonel wines and to characterize twelve Chardonel wines from different Midwestern states. Thirteen trained panelists desribed the aroma, flavor-by-mouth, texture/mouthfeel and aftertaste characteristics. Analysis of Variance (ANOVA) results revealed that wines were a significant source of variation for 13 of the 23 attributes used. These 13 attributes were used to conduct cluster analysis and principal component analysis (PCA). Two major clusters were observed by cluster analysis. PCA biplot of facrot 1 and 2 explained 77% of the total variation. These descriptive terms can aid in further studies on various Midwestern wines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb11007.x
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  • 10
    Electronic Resource
    Electronic Resource
    Sensory, Histological, and Bacteriological Changes in Flat Oysters, Ostrea edulis L., during Different Storage Conditions (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 69 (2004), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Flat oysters, Ostrea edulis, were emersed and stored for 23 d in freshwater ice and cold stored without ice. A control group was maintained in running seawater. Death, histological changes, bacterial growth, and changes in sensory profile were measured and described. Death of the oysters could be determined by measuring tissue pH. The sensory profiles of iced and cold-stored oysters were significantly different from the controls, and changes in sensory profile correlated with the appearance of spoilage bacteria and degradation of digestive tissues. Changes were most pronounced in iced specimens. Freshness of the oysters was correlated to the smell of sea, fresh fish, and shellfish and the appearance of the mantle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb11006.x
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