S. Kulandaivel*, R. Prakash, R. Anitha and N. Arunnagendran
Post graduate and Research unit of Microbiology, Thiagarajar College,
Madurai – 625 009, Tamil Nadu, India.
ABSTRACT
In the present investigation an attempt has been made to experimentally test the antimicrobial efficacy of Blue green algae, Spirulina and Oscillatoria against various pathogens both the algae were tested separately using different solvent such as acetone, ethanol and diethyl ether for the extraction of active compounds. Among these diethylether extract was found to be high effective against E. coli, Pseudomonas sp., Klebsiella pneumonia, Enterobacter sp. and Salmonella typhi. In rest of the solvents extracts exhibited varying degree of inhibitory activity.
Keywords: Spirulina platensis, Oscillatoria, Solvents, antimicrobial activity.