[Interaction of vitamin E (alpha-tocopherol) with oxygenated fatty acid derivatives]

Fluorescence spectra of alpha-tocopherol and its mixtures with oxygenated derivatives of fatty acids--linoleic acid hydroperoxide, hydroxylinoleic and ricinoleic acids--were investigated in terms of the excitation and emission dependence on the concentration of components in acetonitrile solution. In accordance with our results, formation of the alpha-tocopherol excimer and exciplex with the oxygen-containing derivatives of polyunsaturated fatty acids was suggested. The character of the interaction between components of the excited complexes and their possible role in peroxidation of lipids are discussed.