Products Formed by Photosensitized Oxidation of Tocopherols
- 1 October 1979
- journal article
- research article
- Published by Oxford University Press (OUP) in Agricultural and Biological Chemistry
- Vol. 43 (10), 2151-2156
- https://doi.org/10.1080/00021369.1979.10863772
Abstract
Two isomers of primary products formed by méthylene blue sensitized photooxidation of δ-tocopherol were separated by thin layer chromatography. The products were characterized by UV, IR and NMR spectra and were identified to be 8aS- and 8aR-hydroperoxy δ-tocopheryl dienones, respectively. On decomposition of the photooxidized α-, γ- and δ-tocopherols, to-copheryl quinone and tocopheryl quinone epoxide were formed. The effect of hydroperoxy 5-tocopheryl dienone on methyl linoleate peroxidation was examined. The hydroperoxy dienone formed by the photooxidation of tocopherols did not accelerate lipid peroxidation.This publication has 4 references indexed in Scilit:
- Chemistry of singlet oxygen. 30. The unstable primary product of tocopherol photooxidationJournal of the American Chemical Society, 1979
- Quenching Effect of Tocopherols on the Methyl Linoleate Photooxidation and Their Oxidation ProductsAgricultural and Biological Chemistry, 1977
- Products formed by photosensitized oxidation of unsaturated fatty acid estersJournal of Oil & Fat Industries, 1977
- Peroxidation of polyunsaturated fatty compoundsProgress in the Chemistry of Fats and other Lipids, 1971