ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Alterations in lipid constituents of lamb liver in response to varying doses (0-2.0 Mrad) of gamma-radiation were ascertained in terms of total vitamin A, total phospholipid, and fatty acid content. Radiation exposure at 2.0 Mrad dose resulted in a five-fold increase in thiobarbituric acid reacting substances (TBRS) measured in terms of malonaldehyde and a 64% rise in carbonyls. The losses in lipid con- stituents were marginal. During the course of autolysis significant lipolytic activities persisted in irradiated lamb liver as evidenced by the decline in total phospholipid (50%) and neutral fat levels accompanied by a four-fold increase in fatty acid content. In irradiated lamb liver undergoing autolysis, a rapid hydrolysis of vitamin A Esters occurred leading to enhanced vitamin A alcohol/ester ratios. A comparison of radiation destruction of vitamin A in model systems, shark liver oil, and lamb liver revealed that similar doses of gamma-radiation cause more destruction in model systems than in others.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1981.tb14527.x
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