E. Shiney, Reginald and J. Irene Wilsy
Department of Botany and Research Centre, Scott Christian College, Nagercoil-3
Abstract: To evaluate the antibacterial activity of Organic solvent extracts from marine macro algae Hypnea cervicornis (Rhodophyceae) against the eight pathogenic bacterial strains. The antibacterial activities of methanol, ethyl acetate and aqueous extracts were tested against various organisms Eschercia coli, Staphylococcus aureus, Proteus vulgaris, Klebsiella sps, Pseudomonous aeruginosa, Spreptococcus sps, Enterobacter sp and Neisseria sp. by using disk diffusion method. The highest antibacterial activity (15.13±0.15mm) was showed by the methanol extract of Hypnea cervicornis against Streptococcus sp and the lowest activity (7.23±0.25mm) was observed in the methanol extract of Hypnea cervicornis against Proteus vulgaris. The aqueous extract of Hypnea cervicornis was resistant to all bacterial strains.
Keywords: Marine macro algae, antibacterial activity and algal extracts
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