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The deposition of polyunsaturated fatty acids in the rat fed partially hydrogenated vegetable oil
Author(s) -
BeareRogers Joyce L.
Publication year - 1970
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02639233
Subject(s) - linoleic acid , chemistry , polyunsaturated fatty acid , food science , organic chemistry , corn oil , composition (language) , fatty acid , gas chromatography , cis–trans isomerism , biochemistry , chromatography , linguistics , philosophy
The composition of deposited polyenoic fatty acids in rats fed liquid or partially hydrogenated corn oil was determined by gas chromatography, which did not distinguish isomeric forms, and by lipoxidase which reacted with the cis, cis ‐methylene‐interrupted acids. The two methods gave similar results for the liver fatty acids of rats fed either the unhydrogenated or partially hydrogenated oil. Of the fatty acids from the epididymal fat pads of rats fed the hydrogenated product, an appreciable quantity of linoleate isomers did not react with lipoxidase. The total amount of linoleic acid deposited was related to the total fatty acid pattern of the dietary oil. It appeared that the trans ‐acids were mostly metab‐olized and that the original cis,cis ‐linoleic acid remaining in the partially hydrogenated product was preferentially incorporated into tissues.