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Evaluation of antimicrobial activity of aqueous extracts of Nepeta cataria.

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Author(s): Suhaib A. Bandh 1*, Azra N. Kamili1, Bashir A. Ganai2, Bashir A. Lone3, Samira Saleem1

Journal: Journal of Pharmacy Research
ISSN 0974-6943

Volume: 4;
Issue: 9;
Start page: 3141;
Date: 2011;
Original page

Keywords: Medicinal plants | antimicrobial | bacteria | fungi | perennial herb | Kashmir

ABSTRACT
Different concentrations ranging from 100-500mg /ml of aqueous extract of Nepeta cataria (AENC) from leaves of the plant, were subjected to antimicrobialscreening by disc diffusion method against five selected bacterial (Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa, Escherichia coli andBacillus subtillis) and two fungal (Aspergillus flavus and Candida albicans) strains in order to estimate the medicinal potential of the herb. The extracts were foundto inhibit the growth of all the bacterial and fungal organisms tested. The extract showed maximum inhibitory effect against S. aureus, B. subtillis while as mildinhibitory effect was observed against A. flavus among the selected microbial strains. The effect produced by the different extract concentrations was comparablewith the standard antibacterial agent Streptomycin sulphate and antifungal agent Nystatin, which were used as effective positive control in the study.
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