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J Microbiol. 2011 Feb;49(1):161-4. doi: 10.1007/s12275-011-1002-8. Epub 2011 Mar 3.

Antimicrobial effect of Korean propolis against the mutans streptococci isolated from Korean.

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Department of Oral Biochemistry, Chosun University, Gwangju, 501-759, Republic of Korea.

Erratum in

  • J Microbiol. 2011 Apr;49(2)327. Cho, Engene [corrected to Cho, Eugene].


The aim of this study was to determine the optimal concentration of Korean propolis against clinical isolates of mutans streptococci (MS) from Koreans. The antimicrobial activity was evaluated using the minimum inhibitory concentration (MIC) and time-kill curves against mutans streptococci. The MIC(90) values of propolis for MS were 35 μg/ml. Propolis had a bacteriostatic effect on Streptococcus mutans ATCC 25175(T) and bactericidal effects on Streptococcus sobrinus ATCC 33478(T) at > 2 × MIC (70 μg/ml). These results suggest that the propolis can be used in the development of oral hygiene products for the prevention of dental caries.

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