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[Object] To investigate the antioxidative activity of polysaccharide in Polygonum Cillinerve(Nakai) Ohwi.[Method] The hydroxyl radical(·OH) and superoxide anion(O-2) were produced by Fenton reaction and pyrogallol autoxidation system respectively.Active oxygen and nitrosamine were synthesized in simulated human gastric juice environment and tested by UV spectrophotometer.[Results] The scavenging effect on O-2 and ·OH were 63% and 48% when concentration of Polygonum Cillinerve(Nakai) Ohwi polysaccharide was 5 mg/ml,at which the blocking rate of nitrosamine was 41.27%.The scavenging effect on nitrite was 67.03% with polysaccharide concentration of 0.09 mg/ml.[Conclusion] Polygonum Cillinerve(Nakai) Ohwi polysaccharide is endowed with strong anti-oxidation.
[Object] To investigate the antioxidant activity of polysaccharides in Polygonum Cillinerve (Nakai) Ohwi. [Method] The hydroxyl radical (· OH) and superoxide anion (O-2) were produced by Fenton reaction and pyrogallol autoxidation system respectively. nitrosamine were synthesized in simulated human gastric juice environment and tested by UV spectrophotometer. [Results] The scavenging effect on O-2 and · OH were 63% and 48% when concentration of Polygonum Cillinerve (Nakai) Ohwi polysaccharide was 5 mg / ml, at which the blocking rate of nitrosamine was 41.27%. The scavenging effect on nitrite was 67.03% with polysaccharide concentration of 0.09 mg / ml [Conclusion] Polygonum Cillinerve (Nakai) Ohwi polysaccharide is endowed with strong anti-oxidation.