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Antioxidant activity and gas chromatographic-mass spectrometric analysis of extracts of the marine algae, caulerpa peltata and padina gymnospora

Author(s): Kavitha Murugan, Vidhya V Iyer
School of Bio Sciences and Technology, VIT University, Vellore-632 014, India

Correspondence Address:
Vidhya V Iyer School of Bio Sciences and Technology, VIT University, Vellore-632 014 India E-mail: [email protected]

The results of our previous investigations on extracts of selected marine algae showed that Caulerpa peltata and Padina gymnospora had more promising antiproliferative and antioxidant activities than Gelidiella acerosa and Sargassum wightii. Based on these results, the more active chloroform extract of C. peltata and ethyl acetate extract of P. gymnospora were further analyzed for their constituents by using gas chromatography in tandem with mass spectrometry. The GC-MS analysis (GC % peak area given in parentheses) showed that fucosterol (12.45%) and L-(+)-ascorbic acid 2,6-dihexadecanoate (8.13%) were the major compounds present in P. gymnospora ethyl acetate extract. On the other hand, C. peltata chloroform extract had 1-heptacosanol (10.52%), hexacosanol acetate (9.28%), tetradecyl ester of chloroacetic acid (7.22%), Z,Z-6,28-heptatriactontadien-2-one (6.77%) and 10,13-dimethyl-methyl ester of tetradecanoic acid (5.34%) as major compounds. Also described in the report are the beta-carotene bleaching inhibitory and total reducing activities of the chloroform and ethyl acetate extracts of C. peltata and P. gymnospora, respectively, relative to the other three extracts (aqueous, methanol, chloroform or ethyl acetate) of the two algae.

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