In vitro antibacterial activity of Aerva lanata (L.) Juss

Rai, Padmalatha S (2009) In vitro antibacterial activity of Aerva lanata (L.) Juss. Environment and Ecology, 27 (1). pp. 32-35. ISSN 0970-0420

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Abstract

The petroleum ether, chloroform and methanol extracts of Aerva lanata were screened against four gram-negative bacteria (Escherichia coli ATCC 69314, Klebsiella pneumoniae NCIM 2719, Pseudomonas aeruginosa NCIM 2200 and Agrobacterium tumefaciens NCIM 2943) and two gram-positive bacteria (Staphylococcus aureus NCIM 2080 and Bacillus subtilis MTCC 441). The in vitro antibacterial activity was performed by agar well diffusion method. All the three extracts showed promising inhibitory activity against both gram-negative and gram positive bacterial strains tested. The extracts exhibited high degree of sensitivity against gram-negative bacterial. Among the three extracts, methanol extract was highly active and it had a particular good activity against Pseudomonas aureginosa. Agrobacterium tumefaciens, Staphylococcus aureus and Bacillus subtilis and chloroform extract was highly active against Pseudomonas aeruginosa and Klebsiella pneumoniae. The most susceptible bacterium was E. coli. Our findings offer a scientific basis for the folkloric reputation of this plant.

Item Type: Article
Uncontrolled Keywords: Antibacterial activity; aerva lanata; plant extract; agar well diffusion.
Subjects: Life Sciences > MLSC Manipal
Depositing User: KMC Manipal
Date Deposited: 20 Jun 2014 04:39
Last Modified: 20 Jun 2014 04:39
URI: http://eprints.manipal.edu/id/eprint/139844

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