Antioxidant Activity of Polysaccharide from Radix Ginseng Rubra
[Objective] To evaluate the antioxidant activity of polysaccharide extracted from Radix Ginseng rubra in vitro. [Methods] Radix Ginsengrubra polysaccharide,extracted with water at lOCC for 4h with radix ginseng rubra to water ratio of 1:10, used as experimental material for antioxidantactivity study .The antioxidant activity of polysaccharide in vitro was evaluated by the methods of scavenging DPPH radical,scavenging hydroxyl radical(?OH) or reducing power.[Results] The results showed that the scavenging capacity of -OH,DPPH and reducing power increased with the increasingconcentration of Radix Ginseng rubra polysaccharide. 1 mg/mL concentration of radix ginseng rubra polysaccharide had as high as 67.61% scavengingratio of DPPH,and 36.43% scavenging ratio of ? OH.absorbance at 700 ran of reducing power was 0.447 when the concentration of Radix Ginsengrubra polysaccharide was 1 mg/mL. [Conclusion] From the results it could be concluded that polysaccharide from Radix Ginseng rubra had strongantioxidant capacity to have free radical scavenged in vitro.
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万方数据
维普
