Antimicrobial studies of (Mangifera indica L., Anacardiaceae) plant extracts against selected pathogenic microorganisms

Abstract

Recently, increasing resistance of pathogenic bacteria against available antimicrobial agents is of major concern. It is observed that pathogenic bacteria are more and more difficult to treat with existing drugs and to overcome this problem, an antimicrobial drug with a novel mode of action should be developed. Plants are good source of major substances which may serve as antimicrobial agents with no harmful side effects, and has low cost. Plant samples (mango and mango leaves) were collected from the farm of The Agriculture Research Center, Cairo, Egypt.

1. Different parts of the plant samples (kernels, leaves and pulp) were extracted by different solvents ( ethanol 70%, acetone, water 37°C and boiling water), followed by antibacterial activity test using well diffusion technique.

Nine foodborne microorganisms were subjected for investigation in this study, five of them were gram-negative (S. typhi, S. cerro, Sh. dysenteriae, E. coli and P. mirabilis), and