Abstract

In the present investigation antioxidant potentials of 18 marine algae from Gujarat coast were evaluated. Algal samples were collected, dried and crushed to make it fine powder. Algae powder was defatted with hexane and then extracted using acetone by cold percolation extraction method. Antioxidant activity of acetone extract of 18 algae was evaluated by measuring the quenching ability on DPPH free radical, superoxide anion radical, ABTS radical cation, ferric reducing antioxidant power and total phenolic content. As a result of the study, Champia indica acetone extract was found to have a good antioxidant potential as well as high phenolic content. Based on the results, tested algae appear to be good natural antioxidant agent. Identification of the active compounds of these algal species will lead to their evaluation of considerable commercial potential in food production, medicine and cosmetic industry.

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