The Antibacterial Activity of Callemia Sinensis (green tea) on Some Bacterial Species.

Abstract

The main objective of this research is to screen and to evaluate the antibacterial activity of methanol extract of Callemia Sinensis and to find out zone of inhibition against gram positive (G+ve) bacteria as well as gram negative (G-ve) bacteria.
Extraction of the leaves Callemia Sinensis (green tea) and tested against 54 isolates of G+ve and G-ve bacteria which were isolated from different samples, which include pus of skin, urine and throat swabs of patients who were admitted to Al-jerahat specialized hospital in Baghdad during the period of 1/12/2008 to 1/7/2009.
The methanolic extract of the plant Callemia Sinensis (green tea) showed antibacterial activity against 54 bacterial isolates that would be isolated in this study: 8 isolates of Escherichia coli, 8 isolatesof Streptococcus pneumoniae, 12 isolates of Klebsiella pneumoniae, 8 isolates of Staphylococcus aureus, 6 isolates of Proteus species, and 12 isolates of Pseudomonas aeroginosa.

Callemia Sinensis have been shown to have potential chemotherapeutic activities. These data provide a direct mechanism of action for Callemia Sinensis and further support its role as a chemopreventive agents.