Antifungal effect of the bark and root extracts of Punica granatum on oral Candida isolates

Authors

1 Department of Oral and Maxillofacial Medicine, Oral and Dental Disease Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran

2 Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran

3 Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

4 Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

Abstract

Background and Purpose: Oral candidiasis is one of the most common fungal infections in humans. The treatment and prophylaxis of the patients suffering from this infection require the identification of new anti-Candida agents with no side effects or toxicity like medicinal plants. The present study was conducted to compare the antifungal activities of the aqueous, ethanolic, and methanolic extracts of the bark and roots of P. granatum with those of two routine antifungal agents (i.e., fluconazole and nystatin) on oral Candida strains isolated from liver transplant recipients.
Materials and Methods: Minimum inhibitory concentrations (MICs) of the ethanolic, methanolic, and aqueous extracts of the bark and root of Punica granatum against C. albicans and C. glabrata isolated from oral cavities were evaluated according to the CLSI M27-A3. All data were analyzed in SPSS (version 16.0) by pairwise comparison and Kruskal-Wallis test.
Results: The MIC50 and MIC90 values for the methanolic and ethanolic extracts of the bark and root of P. granatum against C. albicans were both obtained as 0.05 mg/ml with the geometric mean (GM) of 0.07. Furthermore, the MIC90 values for the aqueous extracts of bark and root were estimated as 0.05 and 0.2 mg/ml, respectively. With regard to C. glabrata, the MIC50 and MIC90 values for the methanolic and ethanolic extracts of the bark and root were 0.05 mg/ml. However, the MIC90 value for the aqueous extract against this species was obtained as 25 mg/ml. The GM values for the aqueous extracts of the bark and root were 9.49 and 0.32, respectively.
Conclusion: As the findings indicated, the methanolic and ethanolic extracts of the bark and root of Punica granatum had anti-Candida activities. Therefore, they can be considered as mouthwash or toothpaste to prevent and treat Candida infections in the oral cavity.

Keywords

Current Medical Mycology
Volume 4, Issue 4
December 2018
Pages 20-24

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History

  • Receive Date: 09 July 2019
  • Revise Date: 09 October 2020
  • Accept Date: 09 July 2019
  • Publish Date: 01 December 2018

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