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  • Title: In vitro antioxidant activities of selected seaweeds from Southeast coast of India.
    Author: Devi GK, Manivannan K, Thirumaran G, Rajathi FA, Anantharaman P.
    Journal: Asian Pac J Trop Med; 2011 Mar; 4(3):205-11. PubMed ID: 21771454.
    Abstract:
    OBJECTIVE: In vitro antioxidant activities of three selected Indian seaweeds viz., Halimeda tuna (H. tuna), Turbinaria conoides (T. conoides) and Gracilaria foliifera (G. foliifera) were evaluated. METHODS: Total antioxidant activity, total phenolic content, and reducing power of crude methanol and diethyl ether extracts were determined. RESULTS: Total phenolic content and total antioxidant activity were higher (1.231±0.173 mg GAE/g, 1.675± 0.361 mg GAE/g) in T. conoides respectively. Reducing power of crude methanol extract increased with concentrations of the extract. The Fourier transform-infra red spectrum analysis revealed the presence of polyphenolic signals. The seaweed extracts displayed moderate antioxidant activity compared to gallic acid standard. CONCLUSIONS: The seaweeds could be considered for curing diseases from oxidative deteriorations.
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