Free Radical Scavenging Potential of Marine Red Seaweed Gelidiella calcicola Resource for Human Society

Author(s): R. Subashini* and P. Arjun

Abstract: Objective: Antioxidants are very important substances which acquire the capability to defend the body from injure caused through free radical induced oxidative stress. In this study, in vitro free radical scavenging activity of Gelidiella calcicola evaluated in a succession of different types of in vitro assays. Methods: The evaluation of antioxidant activity properties was determined through DPPH (1,1-diphenyl-2-picrylhydrazyl), ABTS (2,2’-azinobis 3ethylbenzthiazoline-6-sulphonic acid, FRAP (ferric reducing antioxidant power), NO (nitric oxide scavenging assay), superoxide, reducing power, OH (hydroxyl) radical scavenging and H2O2 (hydrogen peroxide) radical assay, metal chelating activity as well as phosphor molybdenum assay. Results: Amongst the tested red algae, the utmost antioxidant scavenging activity was recorded in MeOH extract of Gelidiella calcicola. Whereas crude MeOH extract of red algae showed good quality antioxidant potential. Conclusion: The present study findings are suggesting that MeOh extracts could be a prospective resource of natural antioxidant that could have enormous consequence as therapeutic agents. The current study findings seem promising to assist additional experiments on the identification and characterization particular compounds which are accountable for comparatively lofty antioxidant activities.

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