Document Detail


The unusual occurrence of 14-methylhexadecanoic acid in Pinaceae seed oils among plants.
MedLine Citation:
PMID:  9307939     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
14-Methylhexadecanoic (14-MHD) acid has been identified in a sample of pine seed oil (Pinus contorta) by gas-liquid chromatography-mass spectrometry of its picolinyl ester derivative. Its identification (through its equivalent chain length) and its distribution in four conifer families have been checked. It occurred only in Pinaceae, where it was found in 72 species belonging to the genera Pinus, Abies, Cedrus, Tsuga, Pseudotsuga, Larix, and Picea, in the range 0.02-1.15%. 14-MHD acid could not be detected in the lipids of Taxaceae (Taxus baccata), Cupressaceae (Juniperus communis), or Taxodiaceae (Sciadopytis verticillata), even after a 10-fold concentration of the saturated acid fraction isolated by argentation thin-layer chromatography. It is concluded that Pinaceae, along with Ginkgo biloba seed lipids, are major exceptions in the plant kingdom with regard to 14-MHD acid, which otherwise occurs almost exclusively in lipids of animals and microorganisms. The biosynthesis and metabolic role of 14-MHD acid, which otherwise also occur in wood and leaf lipids, remain unknown.
Authors:
R L Wolff; W W Christie; D Coakley
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Lipids     Volume:  32     ISSN:  0024-4201     ISO Abbreviation:  Lipids     Publication Date:  1997 Sep 
Date Detail:
Created Date:  1998-01-06     Completed Date:  1998-01-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0060450     Medline TA:  Lipids     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  971-3     Citation Subset:  IM    
Affiliation:
ISTAB, Laboratoire de Lipochimie Alimentaire, Université Bordeaux, Talence, France. rwolff@istab.u-bordeaux.fr
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MeSH Terms
Descriptor/Qualifier:
Chromatography, Thin Layer
Gas Chromatography-Mass Spectrometry
Molecular Structure
Palmitic Acids / analysis*
Plant Oils / analysis,  chemistry*
Seeds / chemistry
Trees
Chemical
Reg. No./Substance:
0/Palmitic Acids; 0/Plant Oils; 5918-29-6/14-methylhexadecanoic acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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