Studying the Effect of Some Medicinal Plants Extracts and Antibiotics on some Pathogenic Isolates Bacterial

Abstract

The inhibitory effect of black seed extract, Roselle flowers, cloves, eucalyptus leaves and mashed garlic cloves was studied on five isolated pathogenic bacteria, which included: Salmonella typhimurium, Eschcrichia coli, Staphylococcus aureus, Klebsiella pneumonia, Staphylococcus epidor, It appeared that the clove flowers extract was significantly excelled its inhibitory effect on the rest of the plant extracts of the studied bacteria, where it gave a general average of the lengths of the inhibitors diameters of 57 mm for S.typhimurium and E. coli were 41 mm, and S.epidermidis was 33 mm, while S. aureus was less. The types of bacteria studied were sensitive to the extract, amounting to 20 mm. The average effect of clove extract was 25.5 mm for all concentrations and for all studied bacteria. Clove extract is followed in the average lengths of inhibitors diameters is garlic and Roselle extract, where they were given an average of (18.11, 17.95) mm for each, respectively, for all concentrations and for all bacteria types, followed by an extract of the black seed which gave an average of 15.2 mm, while eucalyptus extract gave the lowest averages for the length of inhibitors diameter reached 10.5 mm. As for the inhibitory activity of antibiotics, the antibiotic Nalid acid exceeded with a general average of 23 mm, followed by Gentamcin reached 22.40 mm. Ampicillin gave the lowest mean in the inhibition diameters of 10 mm. From the above, we note the difference between the effectiveness of plant extracts and antibiotics. The extracts combined gave a general average inhibition diameter for all types of bacteria amounting to 17.45 mm, while combined antibiotics gave a general average inhibiting diameter for all types of bacteria reached 17 mm.