Document Detail

Identification of novel trans isomers of 20:5n-3 in liver lipids of rats fed a heated oil.
MedLine Citation:
PMID:  8835404     Owner:  NLM     Status:  MEDLINE    
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.
J M Chardigny; J L Sébédio; A Grandgirard; L Martine; O Berdeaux; J M Vatèle
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Lipids     Volume:  31     ISSN:  0024-4201     ISO Abbreviation:  Lipids     Publication Date:  1996 Feb 
Date Detail:
Created Date:  1997-02-06     Completed Date:  1997-02-06     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0060450     Medline TA:  Lipids     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  165-8     Citation Subset:  IM    
INRA, Unité de Nutrition Lipidique, Dijon, France.
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MeSH Terms
Dietary Fats, Unsaturated / administration & dosage*,  metabolism
Eicosapentaenoic Acid / chemistry,  metabolism
Fatty Acids, Omega-3 / chemistry,  metabolism*
Hot Temperature*
Linseed Oil / administration & dosage*,  metabolism*
Lipid Metabolism*
Liver / metabolism*
Rats, Wistar
Spectroscopy, Fourier Transform Infrared
alpha-Linolenic Acid / metabolism
Reg. No./Substance:
0/Dietary Fats, Unsaturated; 0/Fatty Acids, Omega-3; 1553-41-9/Eicosapentaenoic Acid; 463-40-1/alpha-Linolenic Acid; 8001-26-1/Linseed Oil

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