Fig. 1

Characterization of algal phytoconstituents. a and b Quantification of polyphenols and flavonoids in algal extracts reveals maximum concentration in ethyl acetate extract. c. HPLC analysis of ethyl acetate extract shows the presence of 4 compounds with retention time. d FTIR analysis of ethyl acetate extract showing presence of functional groups. e Analysis of antioxidant activity by DPPH assay reveals maximum antioxidant efficiency of ethyl acetate extract. Values expressed are Mean ± S.D. (H- hexane, D- Dichloromethane, EA- ethyl acetate, ET- ethanol, M- methanol, AQ - aqueous, STD- Ascorbic acid)