期刊
FITOTERAPIA
卷 75, 期 3-4, 页码 385-388出版社
ELSEVIER
DOI: 10.1016/j.fitote.2004.01.002
关键词
Withania somnifera; antimicrobial activity; synergistic effects
The methanol, hexane and diethyl ether extracts from both leaves and roots of Withania somnifera were evaluated for the antibacterial/synergistic activity by agar plate disc-diffusion assay against Salmonella typhimurium and Escherichia coli. Different concentrations of Tibrim, a combination of rifampicin and isoniazid, were tested to find out the minimum inhibitory concentration (MIC), which came out to be 0.1 mg/ml for S. typhimurium and E. coli. From the six extracts tested, only methanol and hexane extracts of both leaves and roots were found to have potent antibacterial activity. A synergistic increase in the antibacterial effect of Tibrim was noticed when MIC of Tibrim was supplemented with these extracts. (C) 2004 Elsevier B.V. All rights reserved.
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