ANTIBACTERIAL ACTIVITY OF BARK EXTRACT OF ACACIA CONCINNA (L)

Antimicrobial properties of Bark extract of Acacia concinna (L) were investigated against laboratory isolates of bacteria using well diffusion method. Chloroform extract (13 mm zone diameter of inhibition) demonstrated the highest activity followed by methanol extract (12 mm zone diameter of inhibition.Phytoconstituents present included phenol, tannin, fat and fixed oil, flavanoids, saponin and quinone. The results of antibacterial activity revealed that all the extract showed good inhibitory activity against all the tested pathogens and the chloroform extract showed comparative by better activity than the other extracts against P.aerogenosa and s. aureus. The activities of the extract were compared with standard antibiotics. These results indicate that A. concinna Bark possesses potential broad spectrum antibacterial activity.