Antioxidant activity of polysaccharide from the Lingbao jujube and Zhengzhou jujube was studied in four aspects,namely DPPH free radical scavenging ability,the total reducing power,hydroxyl radical scavenging ability and superoxide anion scavenging ability.The results showed that:under experimental condition,the two jujube polysaccharide had certain antioxidant activities and increased with the enhancement of concentration.In the experimental concentration,clearance ability of Lingbao jujube polysaccharide ...