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The goal of this study was to investigate the antioxidant properties of crude extracts of Hypnea pannosa, a red alga from the Hypneaceae family that was collected from the Gulf of  Manner in Rameswaram, Tamilnadu. The extracts were assayed for DPPH radical scavenging, Hydroxyl radical, ABTS radical, Superoxide radical, and reducing power. Ethanol and methanol extracts were found to exhibit significant antioxidant activity. Ethanol extract of H. pannosa showed a good significant activity for ABTS and DPPH free radicals (118.56% and 124.30%). This holds great promise for the use of Hypnea pannosa as a source of strong antioxidant compounds.

Red algae, ABTS, DPPH, reducing power, free radical activity

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Farah Mazhar, Mohtasheemul Hasan, Iqbal Azhar, M. Shaiq Ali, Misbah Zubair, Rabail Zahid and Muhammad Akram. Some biological studies on Hypnea pannosa J. Ag. Afr J Biotechnol. 2011; 10(61):13313-13317.

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