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Radiolytic resistance of DL‐α‐tocopherol in lipid systems with different degrees of unsaturation
Author(s) -
Stamatov S. D.
Publication year - 1986
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/bf02645750
Subject(s) - degree of unsaturation , methyl oleate , radiolysis , autoxidation , chemistry , benzene , tocopherol , solvent , linolenate , organic chemistry , double bond , ionizing radiation , antioxidant , medicinal chemistry , nuclear chemistry , irradiation , fatty acid , vitamin e , radical , catalysis , physics , nuclear physics
The radiolytic resistance of the DL‐α‐tocopherol irradiated by low (10 5 rad), medium (10 6 rad) and high (10 7 rad) doses of gamma rays at a molar ratio of 1:1, 1:1 × 10 −2 and 1:1 × 10 −3 mole in methyl laurate, methyl oleate, methyl linoleate, methyl linolenate and benzene (chosen as solvent media) has been studied. Under the experimental conditions stated, it has been established that, contrary to ordinary autoxidation, the unsaturated lipid systems exert a progressive, protective effect on DL‐α‐tocopherol as the number of double bonds increases. When the DL‐α‐tocopherol was in a pure state, for example in benzene and in methyl esters of the fatty acids at a molar ratio 1:1, no effect of ionizing radiation was detected.