Hastane Patojenlerinin Ticari Uçucu Yağlara Karşı Hassasiyetlerinin Belirlenmesi.

Hospitals are the places where antibiotics for diagnosis and treatment are heavily used thus bacteria and yeast resistance gains and the spread of resistant strains are the most frequent environments. The increase in the number of antibiotic resistant microorganisms adversely affects the infection treatments caused by the microorganism and for this reason, the use of medicinal plants (extracts and essential oils) as an alternative to drugs is becoming widespread. The aim of this study is to determine the antimicrobial activity of the eleven plant essential oils against the four pathogenic bacteria (Staphylococcus aureus, Bacillus cereus, Escherichia coli, Salmonella spp.,) and yeast (Candida albicans). Broth dilution and well agar techniques were used in this study. The minimum inhibitory concentration (MIC) of Bergamot (Citrus bergamia) and Nettle (Urtica dioica) essential oils was found to be low (62.5 μL/mL), against Gram positive bacteria and the antimicrobial activity of eleven plant essential oils tested on Gram negative bacteria was found to be moderate (125-500 μL/mL). In well agar test results, sage (Salvia officinalis), Bergamot, Pinus terebenthinae, Urtica dioica were more effective on Gram positive bacteria (13-30 mm) than Gram negative bacteria (8-18 mm) while Copaiba and Cedrus libani were not show any inhibition zone on tested microorganisms and other tested essential oils have antimicrobial activity against only Gram positive bacteria. It was determined that C. albicans inhibition occurred only with Bergamot essential oil (500 μL / mL). Rosewood (Copaifera officinalis) essential oil has not been found to exhibit any activity on the all microorganisms tested. It was thought that essential oils will provide complementary and alternative solutions to combat microorganisms due to the antimicrobial activity detected, and this study will contribute to the studies on the identification of antimicrobial action mechanisms of essential oils. [ABSTRACT FROM AUTHOR]