eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-02-03 4 2 645 650 6061 article S. V. Rajagopal 1 B. V. Raman 1 I. Bhaskar Reddy 2 M. RamaRao 2 K. Siva kumar 1 Department of Biotechnology, College of Science, GITAM College, Visakhapatnam - 530 045 (India) Department of Biochemistry, College of Science, GITAM College, Visakhapatnam - 530 045 (India) In the present study antioxidant, free radical scavenging activity, total phenolics, total carotenoids, vitamin-C and vitamin-E contents of four algal species were carried out to expand their utilization in pharmaceutical and food industry. Fractions rich in phenolics were extracted from four Red algal species using methanol as solvent and Free radical scavenging activity was studied using DPPH photometric assay. Gracilaria corticata exhibited higher levels of radical scavenging activity, total phenolics, and high Vitamin C and vitamin E contents. Whereas, carotenoids are rich in Gracilaria corticata. https://www.biotech-asia.org/vol4no2/antioxidants-and-free-radical-scavenging-activity-of-red-algae-of-visakhapatnam-coast/ Red algae; antioxidants; radical scavenging activity; phenolics; carotenoids