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α ‐Tocopherol prooxidant effect and malondialdehyde production
Author(s) -
Husain S. Rafat,
Cillard J.,
Cillard P.
Publication year - 1987
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02546263
Subject(s) - malondialdehyde , autoxidation , chemistry , tocopherol , polyunsaturated fatty acid , food science , antioxidant , linolenic acid , biochemistry , vitamin e , fatty acid , linoleic acid
Abstract α ‐Tocopherol at high concentration (1.25×10 −4 M) exhibited a prooxidant effect during autoxidation of linolenic and arachidonic acids. This prooxidant activity involved a significant increase of the conjugated diene level, especially with linolenic acid. High performance liquid chromatographic evaluation of malondialdehyde, a by‐product of the hydroperoxides of polyunsaturated fatty acids, showed that malondialdehyde was not increased during prooxidant effect of α ‐tocopherol. Thus, malondialdehyde does not seem to be a good indicator for the manifestation of the prooxidant activity of α ‐tocopherol.