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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1990-1-3
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pubmed:abstractText |
Mono trans geometrical isomers of 20:5 n-3 and 22:6 n-3 were detected in liver lipids of rats fed heated linseed oil. The isomers were identified as being 20:5 delta 5c,8c,11c,14c,17t and 22:6 delta 4c,7c,10c,13c,16c,19t. These fatty acids were isolated as methyl esters by preparative high-performance liquid chromatography (HPLC) on reversed phase columns followed by silver nitrate thin layer chromatography (AgNO3-TLC). The structures were identified using partial hydrazine reduction, AgNO3-TLC of the resulting monoenes, oxidative ozonolysis of each monoene band, and gas-liquid chromatography (GLC) of the resulting dimethyl esters and monomethyl esters. Fourier-transform-infrared spectrometry confirmed the trans geometry in isolated 20:5 and 22:6 isomers. The isomers of eicosapentaenoic and docosahexaenoic acids in liver lipids probably resulted from desaturation and elongation of 18:3 delta 9c,12c,15t, a geometrical isomer of linolenic acid present in the heated dietary oil.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0024-4201
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
24
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
799-804
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:2555649-Animals,
pubmed-meshheading:2555649-Chemical Phenomena,
pubmed-meshheading:2555649-Chemistry,
pubmed-meshheading:2555649-Chromatography, Gas,
pubmed-meshheading:2555649-Chromatography, High Pressure Liquid,
pubmed-meshheading:2555649-Dietary Fats, Unsaturated,
pubmed-meshheading:2555649-Docosahexaenoic Acids,
pubmed-meshheading:2555649-Eicosapentaenoic Acid,
pubmed-meshheading:2555649-Fourier Analysis,
pubmed-meshheading:2555649-Hot Temperature,
pubmed-meshheading:2555649-Isomerism,
pubmed-meshheading:2555649-Linseed Oil,
pubmed-meshheading:2555649-Liver,
pubmed-meshheading:2555649-Rats
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pubmed:year |
1989
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pubmed:articleTitle |
Occurrence of geometrical isomers of eicosapentaenoic and docosahexaenoic acids in liver lipids of rats fed heated linseed oil.
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pubmed:affiliation |
Station de Recherches sur la Qualite des Aliments de l'Homme, Dijon, France.
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pubmed:publicationType |
Journal Article
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