Study on Antioxidant Activity of Crude Extract from Chestnut Flower
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Abstract:
The effective component was extracted from chestnut flower by three methods, including microwave, ultrasound and conventional reflux extraction. The antioxidant activities of the crude extracts were studied through free radical system and nitrite system. The results showed that all of the crude extracts of chestnut flower obtained by the three extraction methods had good antioxidant activity, which could effectively eliminate DPPH• and •OH with the maximal elimination-rate being of 92.8% and 54.3%, respectively. Besides, the three kinds of extracts could eliminate the nitrite and block the synthesis of nitrosamine with the highest elimination rate and blocking rate being of 72.9% and 89.9%, respectively, while they had little effect on the elimination of O2-•.
