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Background: With increasing bacterial resistance for antibiotic, there is an increasing interest in medicinal herbal as a new source of an antimicrobial agents and with less side effects than conventional drugs. Objective: Was to evaluate the potential of Syzygium aromaticum and rosemarinus officinalis extract on Proteus mirabilis isolates in vitro. Methods: Six pathogenic gram negative bacilli belonging to three different genus (E.coli, Proteus mirabilis, and Enterobacter aerogenes) and two isolates from each species were used in this study and four concentration (100%, 75%, 50%, 25% mg/ml ) from each plant extracts (aqueous and ethanolic of Syzygium aromaticum and rosemarinus officinalis extracts ) were prepared to be antibacterial agent. antibacterial activity was measured by using wells method and five antibiotics using to compare with the activity of antibacterial agent. Results: The result of the study shown that the ethanolic extracts of Syzygium aromaticum is a strong antibacterial agent (with diameter of inhibition zone 25 mm) against Proteus mirabilis. Enterobacter aerogenes with (15mm) of inhibition zon, E.coli did not show any inhibition zone also the aqueous and ethanolic of rosemarinus officinalis extracts and aqueous of Syzygium aromaticum extracts did not show any activity towards any gram negative bacilli also the results of the study show resistance isolates of E.coli and Proteus mirabilis toward several antibiotic while Enterobacter aerogenes is sensitive for more antibiotics that used in this study. Conclusions: Our study concluded that the extract of Syzygium aromaticum has high potential as antibacterial agent against UTI that caused by Proteus mirabilis, clove (syzygium aromaticum) can be used in pharmaceutical for the production of new synthetic agents. There is an increasing interest in phytochemicals as new sources of natural antioxidant and antimicrobial agents. The natural compounds which have biological activities are interest to pharmaceutical industries especially for treatment of human disease of microbial origin and several pathological disorders such as cancergenesis, coronary atherosclerosis, as well as in ageing processes.
Sarwa Azeez Khaled (Sat,) studied this question.