Efficacy of Syrian Propolis Against Several Bacterial Strains

Propolis is a natural material that can be found in bee honey. It has many medical uses due to its antibacterial activity. In this study we aimed to estimate the antibacterial efficacy of three propolis extracts using three different solvents (Ethanol, Methanol and Ethyl Acetate). We experienced the three extracts on four different strains of bacteria (Klebsiella pneumonia, Ecoli, Pseudomonas aruginosa & Staphylococcus aureus). The results indicated that all the studied propolis extractions do not have any efficacy on Klebsiella neither on Ecoli. The methanolic extract has the greatest effect on Staphylococcus aureus as well as on Pseudomonas aruginosa in contrast of ethanolic and ethyle acetatic extracts which has no efficacy on any of the studied bacterial strains.