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Some effects of y ‐radiation or linoleate peroxidation on a ‐tocopherol
Author(s) -
Knapp F. W.,
Tappel A. L.
Publication year - 1961
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/bf02641240
Subject(s) - tocopherol , chemistry , autoxidation , solvent , vitamin e , methylene blue , hydrogen atom abstraction , rose bengal , photochemistry , organic chemistry , antioxidant , radical , catalysis , photocatalysis
When α‐tocopherol was irradiated in isooctane, the main product appeared to be a 5‐exo‐methylene tocopher‐6‐one derived by the abstraction of two hydrogen atoms from tocopherol. When tocopherol was irradiated in tributyrin, transesterification was found to be a major reaction. Results with three solvents show that the irradiation products of tocopherol are complex and dependent on the solvent. In peroxidizing linoleic acid, α‐tocopherol was oxidized to α‐tocopheryl quinone, but no radical‐tocopherol addition products were detected.