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  • Articles  (32)
  • Blackwell Publishing Ltd  (19)
  • Springer  (13)
  • American Geophysical Union
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (32)
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  • Articles  (32)
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  • 1
    Electronic Resource
    Electronic Resource
    The Compounds Contributing to the Greenness of Green Tea (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: : Color is one of the determinant sensory qualities for green tea. As cold tea beverages in clear bottles are getting more popular, the traditional evaluation methods are gradually being altered to attach more importance to the tea infusion color. For quality control, experiments were carried out on 10 green tea samples to investigate the compounds influencing the colors of dry tea leaves and infusions. By calculating the coefficients of determination between the greenness (expressed in tristimulus data) and chemical composition, chlorophylls proved to be the influential compounds for the color of dry tea leaves; water-insoluble chlorophylls were also released from the fragile tea leaves during infusion and increased both the greenness and turbidity of tea infusions. Among the flavonoids (catechins and flavonols) detected in green tea infusions, quercetin was shown to be the most important phenolic compound contributing to the greenness of tea infusion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb09894.x
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  • 2
    Electronic Resource
    Electronic Resource
    Functional Properties of Antimicrobial Lysozyme-Chitosan Composite Films (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: : Lysozyme-chitosan composite films were developed for enhancing the antimicrobial properties of chitosan films. A 10% lysozyme solution was incorporated into 2% chitosan film-forming solution (FFS) at a ratio of 0%, 20%, 60%, and 100% (w lysozyme/w chitosan). Films were prepared by solvent evaporation. Lysozyme release from the film matrix, the antimicrobial activity of films against Escherichia coli and Streptococcus faecalis, and basic film properties were investigated. The lysozyme release proportionally increased with increasing initial concentration of lysozyme in the film matrix, and the amount of released lysozyme was in natural log relationship with time. The films with 60% lysozyme incorporation enhanced the inhibition efficacy of chitosan films against both S. faecalis and E. coli, where 3.8 log cycles reduction in S. faecalis and 2.7 log cycles reduction in E. coli were achieved. Water vapor permeability of the chitosan films was not affected by lysozyme incorporation, whereas the tensile strength and percent elongation values decreased with increased lysozyme concentration. Scanning electron microscopy images revealed that lysozyme was homogeneously distributed throughout the film matrix. This study demonstrated that enhanced antimicrobial activity of lysozyme-chitosan composite films can be achieved by incorporating lysozyme into chitosan, thus broadening their applications in ensuring food quality and safety.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2004.tb09890.x
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  • 3
    Electronic Resource
    Electronic Resource
    Marker-assisted selection of common beans for resistance to common bacterial blight: efficacy and economics (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 119 (2000), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The possibility of using random amplified polymorphic DNA (RAPD) markers previously mapped in the common bean PC50/XANI59 population to select for resistance to common bacterial blight (CBB) in different populations was examined. Two out of 02 selected RAPD markers were polymorphic in HR56 and W0633d, the parental lines used in this experiment. Cosegregation analysis of the two polymorphic markers and disease reaction in a recombinant inbred (RI) population derived from HR67/W1744d confirmed that one of the two RAPD markers, BC420900, was significantly associated with a major quantitative trait locus-conditioning resistance to CBB in HR67. This locus accounted for approximately 51) of the phenotypic variation. The RAPD marker was transformed into a sequence characterized amplified region (SCAR) marker and used for selection in a different population derived from ‘Envoy’/HR67. Prediction for resistance to CBB with the BC420.990 SCAR marker was 94.2% accurate in this population. A comparison between marker-assisted selection (MAS) and conventional greenhouse screening showed that the cost of MAS is about one-third less than that of the greenhouse test.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2000.00514.x
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  • 4
    Electronic Resource
    Electronic Resource
    Cholesterol Oxidation Products in Some Muscle Foods (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 52 (1987), 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: Cholesterol oxidation products were estimated in some meat products by capillary gas chromatography after trimethylsilylation. Peak identities were confirmed by mass spectrometry. Freeze-dried pork, stored in contact with air at 22°C for ca. 3 yr, revealed 7α- and 7β-hydroxycholesterol, 7-ketocholesterol, α- and β-epoxide and cholestane-triol. The total concentration of oxidation products reached almost half of the remaining cholesterol content with 7-ketocholesterol as the predominant species. Some oxidation products were noted at a few ppm levels in broiled beef steaks, but not in precooked beef products. As rancidity development advanced in comminuted and cooked meats during storage, the oxidation of cholesterol became apparent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1987.tb05863.x
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of Mixture and Storage on the Palatability of Beef-Turkey Patties (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 52 (1987), 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: Beef and turkey mixtures were formulated to contain 100/0, 80/20, 60/40, 40/60, 20/80 or 0/100% lean beef/lean turkey with a constant fat content. Sensory parameters and physical characteristics were measured to evaluate the product during storage. There were no differences (p〉0.05) in beef flavor between 80% and 100% beef products or between 0%, 20%, 40% and 60% beef patties. Juiciness scores were increased by adding turkey while texture scores were decreased. Similarly, 80% and 100% beef patties had greater (p〈0.05) hardness than other mixtures. Off-flavor scores were not affected by mixture although malonaldehyde content of cooked patties increased markedly as the percentage of turkey increased. In general, ground beef products containing between 20% to 80% turkey had similar sensory, storage and physical characteristics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1987.tb14033.x
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  • 6
    Electronic Resource
    Electronic Resource
    Further Investigation of Oxidized Cholesterol Derivatives in Heated Fats (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 51 (1986), 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 oxidation of cholesterol in tallow heated at various frying temperatures, 135°, 150°, 165°, and 180°C was studied by capillary gas chromatography. The linearity of formation of 7-ketocholesterol with heating time was confirmed. However, no significant differences in rate of formation of 7-ketocholesterol were noted among temperatures of 135°, 150°, and 165°C. Therefore, it was not possible to construct a kinetic equation. The possible efficacy of antioxidants at frying temperatures was demonstrated by incorporating ascorbyl palmitate plus dl-α-tocopherol into tallow at 135°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1986.tb13132.x
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  • 7
    Electronic Resource
    Electronic Resource
    Composition of Surimi-like Material from Beef or Pork (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 61 (1996), 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: A surimi-like material was made from finely minced beef or pork by water washing followed by screening to remove connective tissue. Changes in component proteins, amino acid composition and vitamin, mineral and cholesterol content occurring during preparation were investigated. Total amino acid nitrogen contents of water-washed beef and pork were higher than those of the respective muscle by 7% and 6.5%. Among 16 amino acids measured, histidine and glycine decreased in both water-washed beef and pork, while others increased compared to original muscle. Thiamin content decreased after washing. Surimi-like beef and pork had less cytoplasmic minerals (K, Na, Mg) but more minerals associated with proteins or subcellular organelles (Ca, Cu, Zn, Fe). Fat content decreased, although cholesterol concentration was not changed by washing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1996.tb12188.x
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  • 8
    Electronic Resource
    Electronic Resource
    Composition of Cooked Pork Chops: Effect of Removing Subcutaneous Fat Before Cooking (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 54 (1989), 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: Conventionally trimmed (0.6 cm) and completely trimmed (0 cm) prok chops were used to evaluate the effect of removing subcutaneous fat on lipid retention during broiling of pork. Composition of the lean portion of cooked chops was not affected by removal of external fat before cooking. Conventional chops contained 4.4% either extractable lipid and completely trimed chops contained 4.3%. Lipid retention was also the same at 94–99%. Recovery of moisture, protein, and lipid was 98–99%, using ether extraction or chloroform:methanol extraction. Therefore, the concept of lipid migration during cooking was not a tenable explanation for reports of lipid retention exceeding 100% during broiling of pork chops typical of those available to consumers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1989.tb08556.x
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  • 9
    Electronic Resource
    Electronic Resource
    Palatability and Texture of Ground Meat Patties Made with Varying Amounts of Pork and Turkey (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 52 (1987), 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: Meat mixtures were prepared containing pork lean and turkey lean in ratios of 0/100, 33/67, 100/0 and a constant fat content. Blends were prepared with and without a commercial seasoning-antioxidant mixture (SA) and evaluated after 0, 3, 6 or 9 days (4°C) storage or 0, 14 or 28 days (-20°C) storage. Flavor intensity scores for blends containing up to 67% turkey were not different (P 〉 0.05); however, 100% turkey patties had lower flavor intensity scores. Off-flavor and firmness scores were not affected by blend for products containing between 33% and 100% pork lean, while storage had no effect on off-flavor in products containing SA. Juiciness was not affected by blend or storage. Results indicate acceptable patties can be made from blends of pork and turkey containing relatively high levels of turkey.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1987.tb05861.x
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  • 10
    Electronic Resource
    Electronic Resource
    HPLC Determination of C-7 Oxidized Cholesterol Derivatives in Foods (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 50 (1985), 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: A method was developed for the rapid, accurate analysis of C-7 oxdized cholesterol derivatives (C-7 OCDs) in muscle and other foods. The method avoids saponification. Total lipid extracts were fractionated on silica gel columns to concentrate trace sterol oxides from triglycerides, cholesterol, and phospholipids. Sterol oxides in eluates were quantified by normal-phase high performance liquid chromatography. Recoveries of C-7 OCDs added to beef approached 100%. Pancake mix, French fries, and organ product “concentrates” sold in health food stores contained from 1 to 70 ppm of C-7 OCDs (7-keto, 7α-hydroxy and 7β-hydroxycholesterol), but none could be detected in raw beef, fried chicken, cooked hamburger, beef jerky or liver sausage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1985.tb10494.x
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