Objective: To evaluate the in vitro antifungal activity of curcumin against 2 strains of Candida albicans (ATCC 90028 and a clinical isolate - JY strain) and 1 isolate each of 3 nonalbicans - Candida species [Candida parapsilosis (ATCC 22019), C. glabrata (ATCC 90030), and C. dublieniensis (MYA 646)].
Materials And Methods: Planktonic MIC of the 4 Candida species was determined using micro broth dilution assay according to CLSI M27-A3 criteria. The biofilm development and sensitivity assay were performed with the 2 C. albicans strains.
Results: Curcumin at high concentrations (0.1-2 mg/mL) was effective in inhibiting planktonic organisms of all the 5 tested Candida strains. The planktonic phase and the biofilm phase of C. albicans ATCC 90028 exhibited similar MIC values for curcumin (0.5 mg/mL). Both curcumin and fluconazole were ineffective against the mature biofilms of JY strain.
Conclusion: Our results reported here for the first time, in particular for the biofilm state of C. albicans, imply that curcumin a natural product could be used as a therapeutic alternative to conventional antifungals although further investigations are required to evaluate its potential.
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