Phenotypic Investigation of the Antimicrobial Effect of Organic and Hydro-Alcoholic Extracts of Boswellia serrata on Oral Microbiota

  • Sedigheh Bakhtiari Preventative Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Fatemeh Nematzade Private Practice, Tehran, Iran
  • Mojdeh Hakemi-Vala Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Ghazaleh Talebi Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Keywords: Candida albicans, Candida glabrata, Streptococcus mutans, Boswellia serrata, Minimum Inhibitory Concentration


Objectives: Considering the emergence of resistant microbes and side effects of chemical drugs, in this study, the inhibitory effect of organic and hydro-alcoholic extracts of Boswellia serrata (B. serrata) on some oral microbiota was investigated.

Materials and Methods: In this experimental study, standard strains of Candida albicans (C. albicans; PTCC 5027), Candida glabrata (C. glabrata; PTCC 5295), Candida krusei (C. krusei; PTCC 5297), and Streptococcus mutans (S. mutans; PTCC 1688) were collected from the Iranian Research Organization for Science and Technology (IROST). Then, the minimum inhibitory concentration (MIC) of organic and hydro-alcoholic extracts of B. serrata was determined based on the CLSI protocol and using the micro-dilution method. The contents of each well were subcultured in Müller-Hinton agar (Candida species) and blood agar (S. mutans). The lowest concentration with no growth was considered as the minimum fungicidal concentration (MFC) or bactericidal concentration (MBC). Statistical analyses were performed using Mann-Whitney test.

Results: Hydro-alcoholic extract of B. serrata at the concentration of 50 mg/ml inhibited the growth of C. albicans and S. mutans. It also inhibited the growth of C. krusei and C. glabrata at the concentration of 100 mg/ml. Organic extract of B. serrata at the concentration of 200 mg/ml only inhibited the growth of C. glabrata.

Conclusion: Hydro-alcoholic extract of B. serrata had a greater inhibitory effect on C. albicans and S. mutans compared to the organic extract.


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How to Cite
Bakhtiari S, Nematzade F, Hakemi-Vala M, Talebi G. Phenotypic Investigation of the Antimicrobial Effect of Organic and Hydro-Alcoholic Extracts of Boswellia serrata on Oral Microbiota. Front Dent. 16(5):386-392.
Original Article