PJB-2018-416
IN VITRO ANTIBACTERIAL POTENTIAL OF ACACIA STENOPHYLLA BY DISCS DIFFUSION METHOD
Farooq Ali
Abstract
Abstract
Antibacterial potency of the various extracts such as methanol extract, ethanol extract and aqueous extract of Acacia stenophylla was screened with two different amounts (1 and 2mg/disc) against five clinically important gram-negative and gram-positive bacterial strains. The final results revealed that these extracts exhibited high antibacterial activity to each bacterial strain. The methanol sample extract of Acacia stenophylla exhibited quite high antibacterial potency to the all five pathogenic bacteria, followed by ethanol extract. The aqueous extract of Acacia stenophylla established limited zones of inhibition to the growth of tested pathogenic bacteria. The most susceptible bacterial strain was Bacillus subtilis in gram-positive bacteria, followed by Staph aureus when exposed to methanol, ethanol and aqueous extracts while the most susceptible strain was Pseudomonas aeruginosa among the gram-negative bacterial strains. The bacterial strain remained the most resistant was E. coli among all the gram-negative pathogens, followed by Acinetobacter pneumonia.
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