eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-03-10 5 1 493 494 7087 article K. Ravi Shankar 1 K. V. R. N. S. Ramesh 1 P. Naveena 1 Aditya Institute of Pharmaceutical Science and Research Aditya Nagar, Surampalem - 533 437 (India) The invitro antioxidant activity of flower and fruit extracts of Alstonia scholaris has been investigated by DPPH (1, 1-diphenyl, 2-picryl-hydrazyl) free radical and superoxide radical scavenging activity. The methanolic extracts of Alstonia scholaris flower and fruit showed significant antioxidant activity by inhibiting DPPH and Superoxide production and were evaluated by comparing with standard gallic acid. Free radical scavenging activity might be due to the presence of flavonoid. https://www.biotech-asia.org/vol5no1/free-radical-scavenging-activity-of-the-flower-and-fruit-extracts-of-alstonia-scholaris/ Alstonia Scholaris; antioxidant activity; free radi