using ultraviolet spectrophotometry and 1h-nmr high-resolution spectroscopy , it has been demonstrated that the formation of alpha-tocopherol complexes with free fatty acids occurs via two types of interaction , namely formation of a hydrogen bond between the alpha-tocopherol chromanol nucleus hydroxyl and the carboxyl group of a fatty acid , and interaction of the fatty acid acyl chains with the chromanol nucleus methyl groups .
C0015688
free
C0015684
fatty acid