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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Tallow or fractionated tallow could be utilized as suitable replacements for expensive imported fats. Detergent (aqueous) fractionation is applicable to beef tallow and involves the addition of water containing an inorganic salt (Na2SO4) and a surface active agent, sodium dodecyl sulfate (SDS), to a partly crystallized oil. Centrifugation yields olein and stearin layers. Investigation of four principal process variables revealed that olein production was maximized with (1) 5 hr of crystallization, (2) minimum stirring during crystallization, (3) subsequent addition of SDS to fractions, and (4) a 4:1 electrolyte to detergent ratio. A comparison with olein yields for current fractionation methods for tallow revealed that the modified procedure was rrore efficient.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Chicken frankfurters, prepared with various levels of sodium nitrite (0, 20, 40, 60, 100, and 156 ppm) were heated either in a microwave oven, boiled or broiled and then analyzed for N-nitrosamines. As expected, “apparent” N-nitrosamine levels increased with increasing concentrations of sodium nitrite. The effect of the various heating procedures on N-nitrosamine formation was inconclusive, due possibly to the low levels of “apparent” N-nitrosamines present. The two most common N-nitrosamines present appeared to be N-nitrosodimethylamine and N-nitrosomorpholine. However, only in the frankfurter samples prepared with 156 ppm nitrite was the presence of N-nitrosomorpholine confirmed by mass spectrometry.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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