HOẠT TÍNH KHÁNG OXY HÓA CỦA CAO CHIẾT LÁ DÂY MỎ QUẠ (Dischidia major)
This research aimed to investigate the antioxidant activity of the aqueous, methanolic and ethanolic extracts of Dischidia major (Vahl) Merr. leaf by using different antioxidant models of screening such as the methods of DPPH, ABTS•+, Reducing Power (RP), Ferric ions Reducing Ability Power (FRAP), phosphomolybdenum and nitric oxide. The results showed that the aqueous extract exhibited the best antioxidant activity in all extracts. In addition, the results of prelimary chemical constituents and total polyphenol and flavonoid contents showed that the aqueous extract contained lots of high bioactive components which fit with the best antioxidant activity of aqueous extract. The present study opens a new direction for using this plant in the medicinal field in the future.