April 2006
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122 Reads
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5 Citations
Research Journal of Microbiology
Petroleum ether, ethanolic and water extracts of Petroselinum sativum and Coriandrum sativum were screened for antibacterial activity against one standard gram-positive bacterium (Staphylococcus aureus) and three gram-negative bacteria (Escherichia coli,P'seudomonas aeruginosa and Salmonella typhi). Petroleum ether extract from C. sativum in different concentrations (25-100%) did not show any antibacterial activity against the test bacteria while the petroleum ether extract from C. sativum was active against only Pseudomonas aeruginosa. The ethanol extracts of the two plants were active against all test bacteria (S. aureus, E. coli, Ps. aeruginosa and S. typhi), but that from P. sativum was inactive against E. coli. The water extract from P. sativum was active against all bacteria while that from C. sativum was active against S. aureus, Ps. aeruginosa and S. typhi but inactive against E. coli.