Antioxidant and prooxidant activities of B group vitamins in lipid peroxidation.

The antioxidant and prooxidant activities of six B group vitamins against hydroperoxide generation in linoleic acid peroxidation were analyzed by the aluminum chrolide method. The B group vitamins were divided into three types by their antioxidant and prooxidant properties. The first type, including B1, B2 vitamin, nicotinic acid and folic acid, showed prooxidant activities in the early phase (1 week) of the linoleic acid peroxidation at concentrations of 2.