Premium
Autoxidation of methyl linolenate and methyl linoleate: The effect of α‐tocopherol
Author(s) -
Peers Kenneth E.,
Coxon David T.,
Chan Henry W S.
Publication year - 1981
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740320908
Subject(s) - autoxidation , linolenate , chemistry , tocopherol , methyl oleate , organic chemistry , conjugated system , double bond , stereochemistry , antioxidant , medicinal chemistry , fatty acid , vitamin e , catalysis , polymer
α‐Tocopherol substantially affects the distribution of peroxidic compounds formed during the autoxidation of methyl linolenate and methyl linoleate. In the autoxidation of both these unsaturated fatty acid esters the proportion of monohydroperoxides with conjugated double bonds in the trans, trans configuration is reduced until at high concentrations of α‐tocopherol (5%) only cis, trans isomers are formed. In the autoxidation of methyl linolenate the proportion of hydroperoxy‐epidioxides is reduced and only monohydroperoxides are formed when 5% α‐tocopherol is present. The results are discussed in terms of recent findings concerning the mechanism of the autoxidation of unsaturated lipids.