Antibacterial Effect of Some Medicinal Plants against Staphylococcus aureus and Pseudomonas aeruginosa

Multidrug resistant microorganisms are globally becoming a major confrontment because of illogical use of antibiotics and this played a good role in investigation about the antibacterial compounds in plants. Thus, the present study investigate for the antibacterial effect of alcoholic extracts of Curcuma longa L. rhizomes, Commiphoramyrrha L. gums and Ginkgo biloba L. leaves products against Staphylococcus aureus and Pseudomonas aeruginosa. The plants samples extracted by soxhlet with methanol and fractionation with and four solution (chloroform, hexane, water and ethyl acetate) were used for investigation about antibacterial activity by disc diffusion method. The results showed that methanolic alcohol extract and fractions of C. longa L. rhizomes, C. myrrha L. gums showed biological activity against P. aeruginosa and S. aureus bacteria, but methanolic alcohol extract and fractions of G. biloba L. leaves product didn't show any activity as antibacterial substance. It can be concluded that the presence of secondary metabolites as flavonoids, alkaloids, tannins, glycosides and saponins in the plants under study would be marked a good anti-bacterial effect.