ANTIOXIDANT ACTIVITY OF POLYSACCHARIDE FROM CORN SILK IN VITRO

Study on antioxidant activity of the polysaccharide from corn silk in vitro.Methods:Use clearing thiobarbituric acid method, removing 2,2 '-azino-bis (3 -ethylbenzothiazoline-6 -sulfonic acid) diazonium salt (ABTS) radical, chelation ferrous ion ability and clearing DPPH free radicals methods, which vitamin C and EDTA were used as positive controls.Results: IC50 (half inhibitory concentration) of lipid peroxidation,clearing ABTS radical, chelation ferrous ion ability and clearing DPPH radical were 5.424 ,4.618 ,6.056 mg/mL .Conclusion: The polysaccharide of corn silk has the antioxidant activity,which is associated with the concentration of polysaccharide from corn silk.