Comparison of aglycon and glycosidic saponin extracts of Cyclamen coum tuber against Candida spp.

Authors

1 Department of Plant Sciences, Faculty of Biological Sciences, Alzahra University, Tehran, Iran

2 Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran

Abstract

Background and Purpose: Candidiasis, an important fungal infection, is considered the fourth most common nosocomial
blood stream infection. Nowadays, because of increased fungal resistance to antibiotics, the use of herbal medicine has
gained particular attention. Cyclamen species are medicinal plants containing triterpenoid saponins, which are shown to
have antimicrobial properties.
Materials and Methods: Three species of Candida including C. albicans 10231, C. tropicalis 0750, and C. krusei
and nine clinical samples were cultured on Sabouraud dextrose agar. Active substances of the tubers were extracted by
fractionation method. Susceptibility of Candida to Cyclamen coum tuber extracts was evaluated via minimum inhibitory
concentration (MIC) and minimum fungicidal concentration (MFC).
Results: Our results demonstrated that ethyl acetate extract had no inhibitory effect on Candida strains, whereas the
aqueous and n-butanolic extracts showed considerable activity. MIC and MFC of these extracts varied within the
range of 2-32 μg/mL of saponin for different Candida samples. Aglyconic aqueous phase of the extract had the most
effective anticandida activity. Glycosidic and aglyconic aqueous extracts were less active on C. albicans strains and C.
tropicalis, respectively.
Conclusion: Tuber extract of Cyclamen was rich in triterpenoid saponins and had antifungal effect. Sugar chain structure,
as well as type and concentration of the aglycones were effective in this activity.

Keywords

References

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Current Medical Mycology
Volume 2, Issue 2
June 2016
Pages 40-44

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History

  • Receive Date: 09 July 2019
  • Revise Date: 08 October 2020
  • Accept Date: 09 July 2019
  • First Publish Date: 09 July 2019

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