The Antioxidant Effects of Eupatorium triplinerve, Hygrophila triflora and Pterocarpus marsupium-A Comparative Study

Eupatorium triplinerve Vahl., Hygrophila triflora (Roxb.) Fosberg and Pterocarpus marsupium Roxb., are very essential plant species having a broad spectrum of medicinal activities. The present study is designed to produce the comparative data of antioxidant and free radical scavenging effects of the three sources. The free radical scavenging activity was measured by using in-vitro DPPH model. The pet ether, chloroform and methanol extract of the leaves had been prepared and study was carried out using different concentration of the extract. The methanol extract showed potential activity than the other two solvent extracts. Among the three plants Pterocarpus marsupium showed most significant antioxidant activity, even a more potentiality than the standard drug Vitamin C. Key word: Eupatorium triplinerve Hygrophila triflora Pterocarpus marsupium Free-radical-scavenging DPPH In-vitro antioxidant.