Antimicrobial Activity Of The Ethanolic Extract Of Kayseri Propolis

Propolis is a resin collected by honeybees from various plant sources, has attracted the attention of researchers due to its several biological and pharmacological properties in recent years. The aim of this study was to investigate the antimicrobial activity of ethanolic extract of propolis (EEP) collected in Kayseri and its surroundings against some clinically important microorganisms. In the study, Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Klebsiella pneumoniae, Helicobacter pylori, Candida albicans, Candida glabrata strains were used and agar dilution method was performed to investigate of antimicrobial activity according to the CLSI. By using microbroth kinetic system based on continuous monitoring of changes in the optical density of bacte¬rial growth, turbidimetric growth curves of a model bacteria (S.aureus) in the presence of increasing concentrations of EEP were also generated and determined minimum inhibitory concentration (MIC). MIC values of EEP against tested microorganisms were found between 64 and 1024 µg/ml by agar dilution method. The results in microbroth kinetic system were similar to the agar dilution method for S.aureus and in vitro antimicrobial susceptibility was determined in an earlier stage. Kayseri propolis have shown antimicrobial activity against common pathogens, is important to evaluate the availability of treatment.