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Identification of novel trans isomers of 20:5n-3 in liver lipids of rats fed a heated oil.

作者信息

Chardigny J M, Sébédio J L, Grandgirard A, Martine L, Berdeaux O, Vatèle J M

机构信息

INRA, Unité de Nutrition Lipidique, Dijon, France.

出版信息

Lipids. 1996 Feb;31(2):165-8. doi: 10.1007/BF02522616.

DOI:10.1007/BF02522616
PMID:8835404
Abstract

Trans polyunsaturated n-3 fatty acids are formed as a result of the heat treatment of vegetable oils. It was demonstrated previously that the 18:3 delta 9cis, 12 cis, 15 trans containing a cis delta 9 ethylenic bond was converted to a geometrical isomer of 20:5n-3, the 20:5 delta 5 cis, 8 cis, 11 cis, 14 cis, 17 trans. In the present study, we have identified two new isomers of eicosapentaenoic acid, the delta 11 monotrans and the delta 11, 17 ditrans isomers in liver of rats fed a heated oil. These are formed as a result of the conversion of two of the main isomers of linolenic acid which are present in refined and frying oils, the 18:3 delta 9 trans, 12 cis, 15 cis and the 18:3 delta 9 trans, 12 cis, 15 trans.

摘要

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