Atividade antifúngica e modo de ação do extrato etanólico da folha de Schinopsis brasiliensis Engler, sobre espécies do gênero cândida

Abstract

Introduction: The use of natural products as an alternative therapy has become very promising in the treatment of various diseases in recent years, with this perspective; the agents that occur naturally stand out as a source of bioactive molecules with potential therapeutic application in the medical and dental fields. Objective: The objective of this study was to evaluate the antifungal activity and the ethanol extract mode of action of Schinopsis brasiliensis Engler sheet on the Candida genus. Methods: The plant material was collected in the city of Campina Grande -PB then was held to prepare the extract, for the determination of minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC). We conducted the phytochemical screening for the quantification of chemical constituents, then a test was made to verify the possible mechanism of action, whether via mobile or plasma membrane wall. Results: The MIC / MFC values for the ethanolic extract of S. brasiliensis (Braúna) ranged from 31.25 to 250 ug / ml on strains ATCC 60193 C. albicans, C. krusei ATCC 34135, C. tropicalis ATCC 705 C. albicans ATCC 18804, C. albicans and C. tropicalis CBS 562 94. CBS As for the mode of action, antifungal action S. brasiliensis (Braúna) seems to be related to the ionic permeability of the cell membrane. The extract exhibited an increased amount of total polyphenol, total saponins then in its composition, which are directly related to the antifungal activity of the extract. Conclusion: The extract of S. brasiliensis has a strong antifungal activity, acting probably in the ionic permeability of the fungal cell membrane.