and Essential Oils Synergize with Ampicillin against Extended-Spectrum Beta-Lactamase-Producing .

(1) Background: Could compounds such as monoterpenes and sesquiterpenes present in essential plant oils inhibit bacterial growth as an alternative to help mitigate bacterial resistance? The purpose of this study is evaluating the in vitro antibacterial effect of EO (LEO) and EO (TEO), individually and in combination with ampicillin, against extended-spectrum beta-lactamase (ESBL)-producing strains; (2) Methods: Experimental in vitro design with post-test. The EOs were obtained by hydrodistillation and were analyzed by GC. ESBL-producing strains used were selected from urine cultures and the and resistance genes were identified by end point PCR.