Study of antibacterial activity in the local Iraqi propolis

  • Alaa A. Kareem Department of Clinical Laboratories, College of Applied Medical Sciences, Karbala University, Karbala, Iraq.


Objective This study includes the investigation of antibacterial activity of the local propolis against four types of bacteria isolated frompatients.Methods Bacteria were tested including Psedomonas sp, Streptococcus sp, Escherichia coli and Staphylococcus aureus. Six concentrations(0, 5, 10, 15, 20 and 25) mg/ml of propolis extracts were tested against bacteria.Results Results revealed the presence of significant difference (P < 0.05) in the effect of propolis extract against the four types of bacteriain this study. Psedomonas sp. was the most sensitive among the others toward the propolis extract followed by Streptococcus sp., E. coli andStaphylococcus aureus at a rate of inhibition zones (14.09, 10.39, 8.78 and 8.39) mm, respectively. Results of this study also showed increasingrate of inhibition zone if the concentration of propolis extract was increased.Conclusion This study provided that local propolis has antibacterial activity against gram positive and gram negative bacteria.
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How to Cite
KAREEM, Alaa A.. Study of antibacterial activity in the local Iraqi propolis. Journal of Contemporary Medical Sciences, [S.l.], v. 1, n. 2, june 2015. ISSN 2413-0516. Available at: <>. Date accessed: 21 oct. 2021.


antibacterial activity, propolis, inhibition zone, extract