FREE RADICAL SCAVENGING AND ANTIOXIDANT PROPERTIES OF MARINE RED ALGAE HYPNEA MUSCIFORMIS

Objective: The study focused on determining the antioxidant properties of the Hypnea musciformis methanol crude extracts, from the red algae.Methods: The evaluation of antioxidant properties was determined by 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azinobis 3ethylbenzthiazoline-6-sulphonic acid (ABTS), ferric reducing antioxidant power (FRAP), nitric oxide scavenging assay (NO), reducing power, superoxide radical scavenging (SOD), hydroxyl and hydrogen peroxide radical assay, the metal chelating activity as well as phosphomolypdenum assay.Results: Among the tested red algae, the maximum antioxidant activity was recorded in the methanol extract of Hypnea musciformis. Whereas methanolic crude extract of red algae and diatom showed good antioxidant potential.Conclusion: This study suggests that methanolic crude extracts contain different potential antioxidant compounds capable to scavenge different types of free radicals.Â