Antibacterial activity of some plant extracts against some bacterial species

الملخص EN

Antibacterial activity of some local plant extracts : Cumin (Cuminum cyminum), harmal (Peganum harmala) and pomegranate (Punica granatum) were determined against some bacterial species (Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Salmonella typhi and Proteus mirabilis).

These extracts showed variation in their inhibitory effects, the pomegranate (Punica granatum) extract revealed the highest inhibitory activity against most bacterial isolates.

The minimal inhibitory concentration (MIC) was also varied with the type of plant extract and bacteria.

The MIC of the cumin (Cuminum cyminum) was 2.5 gm / dl for E.coli, Pneumonia and S.typhi.

The MIC of harmal (Peganum harmala) was 5gm / dl for Pneumonia, while the MIC of pomegranate (Punica granatum) was 2.5 gm / dl for E.coli and 5gm / dl for the other isolates.