Journal of Pure and Applied MicrobiologyVol. 2 No. 2

Biochemical and Antibacterial Studies on Green Algae of Visakhapatnam Coast

S.V. Rajagopal¹, A. P. Rao¹, B.V. Raman¹, M. Rama Rao², A. Uma Sankar³, A.S. Kumari¹ & K.S. Kumar¹

1Department of Biotechnology, ²Department of Biochemistry, ³Department of Microbiology, GITAM Institute of Science, GITAM University, Visakhapatnam - 530 045, India.

Received on 26 May 2008 and accepted on 04 July 2008



Biochemical and antibacterial activities were investigated with the crude extracts of five green algal species viz., Ulva fasciata, Enteromorpha compressa, Caulerpa racemosa, Caulerpa taxifolia and Cladophora patentiramea to evaluate the total carbohydrate, protein and lipid content and their antibacterial activity against gram positive and gram negative bacteria. Carbohydrate content was found to be high in U. fasciata and C. racemosa, whereas protein and lipid contents were high in Caulerpa species. Chloroform – methanol, n-butanol and diethyl ether extracts of all five green algal species showed different levels of antibacterial activity against Escheriachia coli, Klebsiella pneumonia, Staphylococcus aureus and Bacillus subtilis.

Keywords : Green algae, Antibacterial activity, Biochemical studies, Visakhapatnam seacoast.