Abstract
Both monohydroperoxides (MHP) and more polar secondary oxidation products (SP) formed by autoxidation of methyl linolenate were separated by high performance liquid chromatography (HPLC) into their corresponding four major components. The isomeric compositions of these components were determined by mass chromatographic analysis. All components were positive to the thiobarbituric acid (TBA) test. The reactivities of MHP to TBA did not vary with their isomeric compositions, when iron (II) ion was added in the test reaction. It was concluded that all hydroperoxide isomers present in autoxidized methyl linolenate yielded TBA reacting materials.
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