eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-05-06 7 2 991 994 9678 article G. Mohandass 1 K. Suguna Devi 2 Department of Biomedical Engineering, Sathybama University, Chennai - 119 (India). Prince Dr. K. Vasudevan College of Engineering and Technology, Chennai (India) Natural products have recently become the focus of increased research interest due to their potential pharmacological activities. Therefore, the present investigation was carried out to evaluate Vitex negundo for free radical scavenging activity by diphenyl-picryl-hydrazyl (DPPH) and nitric oxide (NO) radical scavenging assay methods. The results of the present study revealed that Vitex negundo showed remarkable free radical scavenging activity comparable to the standard (Curcumin and BHA). https://www.biotech-asia.org/vol7no2/free-radical-scavenging-activity-of-vitex-negundo/ Antioxidant DPPH Vitex negundo.