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Abstract

Screening of ethanol, petroleum ether and chloroform extracts of medicinal plants, Lawsonia inermis L. and Mimosa pudica L. for antibacterial activity

Author(s): A Akter, FA Neela, M. S. I. Khan, MS Islam, MF Alam
Biotechnology and Microbiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi - 6205, Bangladesh

Correspondence Address:
F A Neela Biotechnology and Microbiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi - 6205 Bangladesh E-mail: nfarzanaashrafi @yahoo.com


Organic extracts (ethanol, petroleum ether and chloroform) of two medicinal plants Lawsonia inermis L. and Mimosa pudica L. were proven for antibacterial properties against 15 Gram-positive and Gram-negative human pathogenic bacteria. Among the three types of extracts tested, ethanol extract was found to possess maximum antibacterial activity. The diameter of the zone of inhibition of bacterial growth showed that Gram-negative bacteria are more sensitive than Gram-positive bacteria to plant extracts. Between the two plants species studied, Lawsonia inermis extract showed more antibacterial activity compared to Mimosa pudica extract.

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