Comparative assessment of antioxidant activity and biochemical composition of four seaweeds, Rocky Bay of Abu Qir in Alexandria, Egypt

The current study estimated the antioxidant activity and biochemical composition of four seaweeds; Toania atomaria (Phaeophyta), Padina pavonia Jania rubens (Rhodophyta) Corallina elongate (Rhodophyta). highest total was observed with ethanol extract T. (44.6 ± 1.6 mg ascorbic acid equivalents/g crude extract). Among seaweeds, has recorded value in ferric reducing power (FRAP) assay (32.3 0.0 uppermost level carbohydrates (20.4% 0.4 19.5% 0.7 dry wt.) P. atomaria. Proteins were maximum (10.5% 0.6 8.0% results detected that had largest amounts lipids (5.92% 0.09 wt.). polyunsaturated ?6 essential fatty acids T.atomaria, pavonia, J. (11.39%, 8.09%, 6.28%), ?3 (0.65% 0.97%). seaweeds are interesting candidates for medicinal, pharmaceutical, nutritional applications owing to their activities, composition; they not widespread coastal waters Egypt few studies, especially