Antioxidative effect of carotenoids on the methylene blue sensitized photoxidation of soybean oil and rapeseed oil was investigated.

采用亚甲蓝作，究了类胡萝卜素在豆油、菜油中的抗油脂氧化作用。

Autoxidation of lipids is a chain raction of free radical.In the inducing stage,the inducers switching on free radical may be lipoxygenase or photoxidation,but the most is transitional metals.

脂类的自动氧化是一个自由反应，诱导期中启动自由的诱发可能是脂氧酶、氧化，但多数为过渡金属离子。