Twenty two species of bacterial cultures belonging to 8 genera were isolated from infected wound cultures. The most common was Escherichia coli which represented 17.5%, followed by Acinetobacter baumannii 14.5% and come next in rank both of Achromobacter sp. and Pseudomonas aeruginosa which represented 13.5% and 12.6%, respectively. Data also showed that, the occurrence Staphylococcus aureus, Enterobacter aerogenes and Klebsiella pneumoniae representing 11.6%, 4.8%, and 5.8%, respectively. The lowest occurrence was recorded by Morganella morganii that represented 2.9%, while the other remaining isolated species were of rare occurrence frequency. The eight most potent isolates were found to be resistant to the most of tested antibiotics, while they showed variable sensitivity to the tested plant extracts. Methanol extract of cinnamon, guava, sumac, radish, and ether extract of cloves were found to be the most effective plant extracts against the tested pathogenic bacteria isolates. GC/MS analysis of cinnamon oil identified twenty-six phytochemicals as constituents; of these cinnamaldehyde was the major compound (57.6%) followed by Cinnamyl acetate (9.22%), Eugenol (5.070%), Cinnamaldehyde dimethyl Acetal (3.5%), and Vitamin E (2.3%).
Key words: Antibacterial activity, Plant extracts, wound infection, bacterial resistance
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