Scavenging Capacity of Artemisia anomala S. Moore on Superoxide Free Radical and Hydroxyl Free Radical

The scavenging superoxide free radical (O 2· -) capacity of Artemisia anomala S. Moore was studied by nitro blue tetrazolium(NBT) photo reduction. The result showed that the extract from Artemisia anomala S. Moore has strong scavenging effect on superoxide free radical. The scavenging effect has relation to the content of the flavonoids. When the concentration of the flavonoids in extract is high enough, it has strong scavenging rate which is 88.41%. Using the models of Vc Cu 2+ H 2O 2 for hydroxyl radical (OH·), the scavenging capacity of the extract of Artemisia anomala S. Moore on OH· was investigated. The maximum scavenging capacity on hydroxyl radical is 84.02%.