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  • 1
    Electronic Resource
    Electronic Resource
    Microstructure of Selected Binary Food Powder Mixtures (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: Binary mixtures of sugar, citric acid, malic acid, soy protein and starch, after exposure to various relative humidities, were analyzed by Scanning Electron Microscopy (SEM). It is shown that depending on interparticle surfaceaffinity, concentration and relative humidity, the mixtures could be random, partially random, ordered or partially ordered. The type of bridging, between the aggregated particles depended on their chemical species and the availability of surface moisture.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1985.tb13430.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    TEXTURAL PROPERTIES OF AMYLOSE SPONGES (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 43 (1978), 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: Sponges were prepared by freezing and thawing of amylose gels. The sponges had a characteristic “leafy’ structure reminiscent of the fleshy part of some seafoods. The mechanical properties of the sponges were evaluated by uniaxial compression. It has been found that the true stress-strain relationship of the sponge could be described by σ= E1ε+ E2εn, where σ and ε are the true stresses and strains, E1, E2, and n are constants. It has been suggested that the first component is the elastic contribution of the sponge and the second component is the contribution of structural compaction which becomes dominant at large deformation levels. The effects of consecutive compressive cycles as well as amylose concentration and freezing methods were also evaluated in terms of mechanical parameters. Explanation of the latter has been suggested in terms of the deformation mechanism of sponges.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1978.tb02472.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of Four Anticaking Agents on the Bulk Characteristics of Ground Sugar (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), 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: Fine silicon oxide, sodium aluminum silcate, tricalcium phosphate and calcium stearate powders were admixed with dry ground sugar at four concentration levels between 0.1 to 2%. Appreciable increase in loose bulk density and decrease in compressibility were noticeable at 0.1% concentration in all four agents. The effect reached an apparent peak or a flat maximum at an agent concentration of about 0.5–1%. With the exception of silicon oxide treated powders, increase in density was accompanied by a corresponding decrease in compressibility. Bulk parameters (i.e., density and compressibility) were more sensitive indices to changes occurring in powders as compared to parameters determined in compacted specimens (i.e., yield in shear, internal friction and relaxation pattern). Results are explained in terms of possible bed arrays and their scatter by differences in particle size and shape distributions. Support for these explanations is presented in scanning electron micrographs of sugar treated and untreated particles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb10119.x
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  • 4
    Electronic Resource
    Electronic Resource
    ENZYMATIC EFFECTS ON CELL RUPTURE IN PLANT PROTEIN RECOVERY (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food biochemistry 2 (1978), S. 0 
    Details
    ISSN: 1745-4514
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Investigation of the effects of selected enzymatic pretreatments of alfalfa leaves on plant protein recovery by mechanical expression of cell contents showed significantly higher crude protein recoveries for enzymatically treated extracts as compared with untreated samples. Protein recovery increases were seen for leaves pretreated with a buffered cellulase and a cellulase-pectinase mixture. However, protein recoveries were not increased by pretreatment with a pectinase or a phospholipase. The increases were partly due to nonspecific buffer effects associated with leaching or osmotic shock and were pH dependent. The increases were also partly due to specific enzymatic effects which appear to result from structural degradation of plant tissue, as seen in electron micrographs, leading to enhanced cell rupture and release of cytoplasmic materials. The effect of enzymatic pretreatment is thought to result in accelerated senescence by degrading major structural components which provide rigidity and mechanical strength in plant tissue. This may be primarily related to the degradation of structural polysaccharides of the cell wall and middle lamella.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4514.1978.tb00612.x
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of colchicine on milk yield, composition, and cellular differentiation during caprine lactogenesis
    Amsterdam : Elsevier
    International Journal of Biochemistry 16 (1984), S. 1135-1141 
    Details
    ISSN: 0020-711X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0020-711X(84)90006-5
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    Paper (German National Licenses)
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