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  • Electronic Resource  (22)
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  • Electronic Resource  (22)
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  • 1
    Electronic Resource
    Electronic Resource
    Rapid Method for Determining Oil Content of Tung Kernels (1947)
    s.l. : American Chemical Society
    Analytical chemistry 19 (1947), S. 453-456 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60007a008
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  • 2
    Electronic Resource
    Electronic Resource
    Water Binding on Collagen by Inverse Phase Gas Chromatography: Thermodynamic Considerations (1979)
    s.l. : American Chemical Society
    Macromolecules 12 (1979), S. 284-287 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma60068a024
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of Gaseous Atmosphere on the State of Water in Collagen Influencing Microbial Growth (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 53 (1988), 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 effects of CO2 and N2 atmospheres on the thermodynamic state of water influencing microbial response in collagen was studied by generating sorption isotherms by inverse gas chromatography and the static method and calculating thermodynamic parameters of sorption. CO2 atmosphere significantly increase; water sorption by collagen at 25°C, 30°C, and 35°C compared to N2 and He. The average binding energies of collagen were significantly increased by CO2 as shown by larger negative Gibb's free energy (δGs), isoteric enthalpy of sorption (δHs) and entropy of sorption (δSs) values. Water clustering in collagen appeared at a higher water activity (aw) in CO2 gas as compared to N2- and He-treated atmospheres at 25°C, 30°C, and 35°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1988.tb09309.x
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  • 4
    Electronic Resource
    Electronic Resource
    Moisture Sorption of Dry Bakery Products by Inverse Gas Chromatography (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: Inverse gas chromatography was used to study moisture sorption properties of two bakery products as a function of temperature and food structure. Crackers (high in fat, low in sugar) were found to be more hygroscopic than sweet biscuits. Sorption isotherms at different temperatures were determined to obtain thermodynamic parameters of sorption. Enthalpy and entropy functions as weU as Zimm-Lundberg clustering analysis suggested different sorption mechanisms in the two systems. Active site binding mechanism was manifested in the cracker system by highly negative enthalpy and entropy changes at low moisture contents. Water-water interactions were more favored in the sweet biscuit system at the same free energy level. Addition of crystalline sucrose decreased hygroscopicity of the cracker system and increased formation of water-water interactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1985.tb13426.x
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  • 5
    Electronic Resource
    Electronic Resource
    MIGRATION OF INDIRECT, FOOD ADDITIVES: A PHYSICAL CHEMICAL APPROACH (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), 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: Active site binding of vinyl chloride monomer by polyvinyl chloride has been demonstrated in 2 of 3 unplasticized resins, by equilibrium partitioning studies. The magnitude of this effect was less than what was observed in previous studies. The potential for active site binding to be a limiting, factor for the migration of indirect food additives may thus depend upon chemical and morphological features of the particular resin used to manufacture the food contact article. Inverse phase gas-solid chromatographic studies have also shown active site binding in the unplasticized resin sample studied by this method. Simple dissolution was shown to be the predominant mode of monomer/polymer interaction, for the plasticized counterpart of this resin. These studies have shown the potential for obtaining reliable data for interaction of polymer resins with indirect food additive type molecules by this more quickly performed technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb07499.x
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  • 6
    Electronic Resource
    Electronic Resource
    SORPTION-DESORPTION OF VINYLCHLORIDE IN SELECTED POLYVINYLCHLORIDE-FOOD SIMULATING SOLVENT SYSTEMS (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), 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 partition or equilibrium distribution of vinylchloride between a polymer phase (polyvinylchloride) and a contacting phase (food simulants) has been determined using n-hexane, distilled water and vegetable oil as the food simulants. The results from the respective polyvinylchloride (unplasticized)-food simulating systems showed a concentration dependent, nonlinear distribution of monomer, in favor of the polymer, with decreasing initial levels of vinylchloride for n-hexane and vegetable oil. For the unplasticized polyvinylchloride-water system, the partition coefficient was also concentration dependent but linear. The partition coefficient was constant with respect to initial monomer concentration for plasticized polyvinylchloride and the food simulants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1977.tb01258.x
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  • 7
    Electronic Resource
    Electronic Resource
    CHEMICAL AND ENZYMATIC MODIFICATIONS OF COLLAGEN: THE EFFECT OF CROSS-LINKING ON THE ENZYME-BINDING CAPACITY OF COLLAGEN (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 41 (1976), 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 structural modifications on the enzyme-binding capacity of collagen has been studied using p-galactosidase (E. coli K1 2) immobilized to collagen membranes. The immobilization process employs simple and inexpensive techniques to bind the enzyme to collagen through direct protein-protein interaction. The tertiary structure of the collagen matrix was modified by cross-linking with the difunctional reagent, glutaraldehyde, or by a natural cross-linking process associated with aging. Such modifications were found to markedly reduce the enzyme (β-galactosidase)-binding capacity of collagen films. The deleterious effect of cross-linking on the binding capacity of collagen was shown to be completely reversed by proteolytic enzyme treatment of aged films but only partly so for glutaraldehyde-treated films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1976.tb14388.x
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  • 8
    Electronic Resource
    Electronic Resource
    INACTIVATION AND REGENERATION OF IMMOBILIZED CATALASE (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 39 (1974), 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: Catalase was immobilized on collagen membrane. The inactivation of immobilized catalase by 0.01M and 0.1M H2O2 was reported. After the initial stage of inactivation, a stable catalatic activity as measured in a continuous flow of 0.01M H2O2 through a modular reactor was observed for longer than 20 days (2.6 min residence time). The regeneration of catalatic activity from the O.1M H2O2 inactivated catalase occurred after incubating the inactivated modular reactor with 0.01M phosphate buffer, pH 6.8. The amount of activity regenerated is directly proportional to the time of incubation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1974.tb02889.x
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  • 9
    Electronic Resource
    Electronic Resource
    COMPUTER ANALYSIS OF THE VARIABLES AFFECTING RESPIRATION AND QUALITY OF PRODUCE PACKAGED IN POLYMERIC FILMS (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 40 (1975), 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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1975.tb02261.x
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  • 10
    Electronic Resource
    Electronic Resource
    IMMOBILIZED CATALASE REACTOR FOR USE IN PEROXIDE STERILIZATION OF DAIRY PRODUCTS (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 40 (1975), 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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1975.tb12547.x
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