A preliminary study on antimicrobial activity of Imperata cylindrica

Harun @ Ismail, Ahmad Fahmi and Abd. Samah, Othman and Sule, Abubakar (2011) A preliminary study on antimicrobial activity of Imperata cylindrica. Borneo Journal of Resource Science and Technology, 1 (1). pp. 63-66. ISSN 229-9769

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Abstract

Antimicrobial properties of the methanol, chloroform or polybutylene succinate (PBS) extracts of leaves and rhizome from Imperata cylindrica were investigated against five clinical isolates of bacteria, namely Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, Staphylococcus aureus and Candida albicans. In disc diffusion test the three types of extracts showed varied levels of antimicrobial activity against the tested isolates, with inhibition zones ranging from 6.33 ± 0.58 to 11.67 ± 8.14 mm diameters. The highest activity was exerted by the methanol leaves extract on P. aeruginosa (11.67 ± 8.14mm) at 50 mg/ml and the least activity was exerted by both the leaves and rhizome extracts of the plant at 1mg/ml on B. subtilis, P. aeruginosa, S. aureus and E.coli (6.33 ± 0.58mm) respectively. A minimum inhibitory concentration (MIC) value of 25mg/ml was obtained for the methanol, chloroform, PBS leaves or rhizome extracts on B. subtilis, P. aeruginosa, S. aureus and E. coli.

Item Type:	Article (Journal)
Additional Information:	4380/17535
Uncontrolled Keywords:	Antimicrobial activity; disc diffusion method; clinical isolates; inhibition zone.
Subjects:	Q Science > QR Microbiology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biomedical Science
Depositing User:	Dr. Othman Abd Samah
Date Deposited:	01 Feb 2012 18:45
Last Modified:	11 Jul 2018 15:29
URI:	http://irep.iium.edu.my/id/eprint/17535

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