Document Detail

Occurrence of positional isomers of octadecenoic and hexadecenoic acids in human depot fat.
MedLine Citation:
PMID:  6033596     Owner:  NLM     Status:  MEDLINE    
Positional isomers of hexadecenoic aud octadecenoic acids of human adipose tissue have been separated by gas-liquid chromatography and their amounts determined by oxidative cleavage (MnO(4) and IO(4)). The following isomeric octadecenoic acids were present: 7-octadecenoic acid (0.4%), 8- (1.9%), 9- (73.0%), 10- (2.5%), 11- (19.0%) and 12- (3.2%). The hexadecenoic acids have also been shown to be a mixture of positional isomers, in which the cis-9-isomer predominates. 10-Hexadecenoic and 12-octadecenoic acids could conceivably be precursors of linoleic acid. The following branched fatty acids have also been determined in human depot fat: 13-methyltetradecanoic, 12-methyltetradecanoic, 14-methylpentadecanoic, 14-methylhexadecanoic, and 16-methylheptadecanoic acid. They were present in percentages of 0.02-0.6% and their identification rests solely on comparison of their gas-liquid chromatographic retention times with those of synthetic compounds.
J Jacob; G Grimmer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of lipid research     Volume:  8     ISSN:  0022-2275     ISO Abbreviation:  J. Lipid Res.     Publication Date:  1967 Jul 
Date Detail:
Created Date:  1967-10-07     Completed Date:  1967-10-07     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376606     Medline TA:  J Lipid Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  308-11     Citation Subset:  IM    
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MeSH Terms
Adipose Tissue / analysis*
Chemical Phenomena
Chromatography, Gas
Fatty Acids / analysis*
Reg. No./Substance:
0/Fatty Acids

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