Antioxidant Activity of Dalbergia Melanoxylon Bark Extract

Abstract

The bark extract of Dalbergia melanoxylon (Fabaceae) was assessed for its antioxidant activity by in-vitro methods. This activity was evaluated by using various methods like hydrogen peroxide scavenging activity, Nitric oxide scavenging activity, DPPH radical scavenging activity and reducing power assay. Quantitative analysis of antioxidative components like total phenolic content, total flavonoid content and antioxidant capacity were estimated using spectrophotometric methods. The obtained results from this method are compared with ascorbic acid acts as a standard antioxidant drug. From the results it can concluded that the plant extract contains flavonoids and related polyphenols. And the extract has shown good scavenging activity in in-vitro methods. So the plant extract may be responsible for antioxidant activity.