380ANTIOXIDANT POTENTIAL OF LEAF, STEM AND ROOT EXTRACTS OF THALICTRUM JAVANICUM BLUMECrude alcoholic and aqueous extracts of leaf, stem and root parts of Thalictrum javanicum were analyzed for their in vitro antioxidant and free radical scavenging properties. The extracts were screened for their antioxidant activities in terms of DPPH•, ferrous ion chelating activity, antihemolytic activity, ABTS•+ free radical scavenging activity and reducing power. Methanolic extracts of leaf, stem and root exhibited remarkable antioxidant activity in terms of all the assays tested than the other solvent extracts performed. The activities were considerably higher than the natural and synthetic antioxidants also. Considering all the activities performed, it is known that leaf, stem and root extracts of T. javanicum were found to be the potent source of natural antioxidantspaulsami@yahoo.comResearch4122013Thalictrum javanicum,Rananculaceae,In vitro antioxidant activityAbinaya Gurunathan,Paulsamy Subramanium, Saradha MaranDepartment of Botany Kongunadu Arts and Science College, Coimbatore, Tamilnadu, India.,Department of Botany Kongunadu Arts and Science College, Coimbatore, Tamilnadu, India.,Department of Botany Kongunadu Arts and Science College, Coimbatore, Tamilnadu, India.