The Impact That Β-Citronellol Isomers Have on the Biofilm Formation of Candida Yeasts

Infections associated with biofilms developed byCandidaspp. are becoming a great problem due to its resistance against the immune response of the host and the action of antifungal agents. Hence, finding substances that can inhibit the development of biofilms increases the likelihood that these compounds one day can become good antifungals applied in the clinic. The aim of this study was to evaluate the effect of beta-citronellol enantiomers on the biofilm formation byCandida albicansandCandida tropicalisisolated from bloodstream infections. Inhibition was evaluated by reading microplates treated with different concentrations of R-(+)-beta-citronellol, S-(-)-beta-citronellol and amphotericin B, compared to negative control, in spectrophotometer at 590 nm. All tested concentrations of beta-citronellol enantiomers inhibited the biofilm formation ofCandida. However, it is still necessary to evaluate the behavior of these isomers on mature biofilms, so that they can become more viable as antifungal therapeutical agents. [GRAPHICS] .