Document Detail


Autoxidation of fatty acid monolayers adsorbed on silica gel: II. Rates and products.
MedLine Citation:
PMID:  200817     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Unsaturated fatty acid monolayers on silica gel have been autoxidized, and the rate of fatty acid disappearance and products obtained from those membrane-like assemblies have been studied. Fatty acid monolayers consisting of pure linoleic acid, linolelaidic acid, and oleic acid were autoxidized at 60 C. The rates of autoxidation of linoleic acid and linolelaidic acid monolayers followed by the disappearance of substrates are considerably faster than that in bulk phase, and the rates conform to apparent first order kinetics. Autoxidation of linoleic and linolelaidic acid monolayers, unlike bulk phase, produced only a small amount of diene conjugation, and the major products formed were identified as 9,10-epoxy and 12,13-epoxyoctadecenoic acid in roughly equal quantities. The epoxidation is stereospecific, with cis and trans olefins giving cis and trans epoxides, respectively. Oleic acid was autoxidized to only a small extent during 27 hr and produced no detectable amount of epoxide.
Authors:
G S Wu; R A Stein; J F Mead
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Lipids     Volume:  12     ISSN:  0024-4201     ISO Abbreviation:  Lipids     Publication Date:  1977 Nov 
Date Detail:
Created Date:  1978-01-27     Completed Date:  1978-01-27     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0060450     Medline TA:  Lipids     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  971-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adsorption
Chemical Phenomena
Chemistry
Fatty Acids, Unsaturated*
Kinetics
Membranes, Artificial
Oxidation-Reduction
Silicon Dioxide
Chemical
Reg. No./Substance:
0/Fatty Acids, Unsaturated; 0/Membranes, Artificial; 7631-86-9/Silicon Dioxide

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


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