Free Radical Scavenging Activity of Methanolic Extract of Seaweed Rhodophyta Gelidiella calcicola (Research Article)

Author(s): *Baskaran.K, Nirmaladevi N, Sumi.P, Jyothylakshmy Rajan and Devi Bala. S

Abstract: Objectives: The aim of the present study was to evaluate the free radical scavenging activity of the compound Gelidiella Calcicola. Material and Methods: Free radical scavenging was determined by using 1,1-diphenyl-2-picrylhydrazyl (DPPH), ABTS (2,2’-azinobis (3ethylbenzthiazoline-6-sulphonic acid), ferric reducing antioxidant power (FRAP), nitric oxide scavenging assay (NO), reducing power, hydroxy radical scavenging assay, superoxide radical scavenging (SOD), hydrogen peroxide radical assay, metal chelating activity as well as phosphomolypdenum assay. Results and Conclusions: The present investigation clearly indicate that the Gelidiella Calcicola possesses antioxidant properties and serve as free radical inhibitors or scavengers, acting possibly as primary antioxidants.

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