Antibacterial activity of the leaf extracts of premna tomentosa wild

The antibacterial activity of the hexane, chloroform, ethanol and water extracts of the leaves of traditional medicinal plant, Premna tomentosa were studied against ten species of bacteria by well-diffusion assay method. The extracts exhibited concentration dependent activity. Maximum activity was observed against Alkaligens faecalis, Bacillus subtilis and Escherichia coli

In vitro studies on antibacterial effect of rhizome extracts from Zingiber officinale Rosc.

The antibacterial effect of various extracts of rhizome from Zingiber officinale Rosc. was tested against some bacteria viz., Bacillus subtilis, Enterococcus faecalis, Staphylococcus aureus, Proteus vulgaris and Escherichia coil. Compared with standard antibiotics, the petroleum ether extract showed moderate activity against the test organisms than the methanol and chloroform extracts