The group administered with the methanol extract showed significant difference in the levels of hemoglobin and hematocrit compared to the negative control group. The total phenol content of all the seaweeds was significantly different (P1000 mg/dL. kappaphycus were higher compared to standard antioxidant (alpha-tocopherol). Reducing power and hydroxyl radical scavenging activity of E. Reducing power of crude methanol extract increased with increasing concentration of the extract. Higher phenolic content (16.26 mg gallic acid equivalent/g extract) was noticed in PE fraction of G. spicifera exhibited higher total antioxidant activity (32.01 mg ascorbic acid equivalent/g extract) among all the fractions. The antioxidant activities of total methanol extract and five different solvent fractions (viz., petroleum ether (PE), ethyl acetate (EA), dichloromethane (DCM), butanol (BuOH) and aqueous) were also evaluated. Total phenolic content and reducing power of crude methanol extract were determined.
In vitro antioxidant activities of three selected Indian red seaweeds - viz., Euchema kappaphycus, Gracilaria edulis and Acanthophora spicifera were evaluated.
Antioxidant properties of methanol extract and its solvent fractions obtained from selected Indian red seaweeds.
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