IN VITRO ANTIOXIDANT ACTIVITY OF KAPPAPHYCUS ALVAREZII (DOTY) DOTY EX. P .C. SILVA
Abstract
Author(s): Biji Cyriac, K. Eswaran
Antioxidant activity is one of the most studies, due to the interest of compounds both as preservatives and protectors against oxidation in food, cosmetics, and health implications because of its pot ential and functional group present in it. To find out the impact of solvents on antioxidant activities different solvents like ethanol, methanol, petroleum ether, benzene, ethyl acetate were used for the extraction of compounds from red algae, Kappaphycus alvarezii. To find out the anti-oxidant activities, DPPH radical scavenging, ABTS radical scavenging, hydroxyl assay, superoxide dismutase assay and reducing power assay were used to determine antioxidant properties of this seaweed. The anti-oxidant assay was performed at the concentration ranging from 50-800µg/ml. Among the different extracts methanol expressed the best result and benzene solvent showed the poor performance. The present studies confirm that Kappaphycus alvarezii received special attention and used as a source of natural antioxidant. Key words: Antioxidant activity, radical scavenging activity, solvent extracts, ascorbic acid
