Evaluación in vitro del efecto antimicrobiano y citotóxico del extracto metanólico dracontium loretense (jergón sacha) sobre cepas de candida albicans (ATCC®10231™), Streptococcus mutans (ATCC®25175™) y Streptococcus sanguinis (ATCC®10556™)

Abstract

Objective: The aim to this study was to evaluate the antimicrobial and cytotoxic effect of the methanol extract of Dracontium loretense (Jergon Sacha) against Candida albicans (ATCC®10231), Streptococcus mutans (ATCC®25175) and Streptococcus sanguinis (ATCC®25175). Materials and Methods: The methanolic extract of Dracontium loretense was prepared at different concentrations. The antimicrobial activity of Dracontium loretense was evaluated on strains of Candida albicans, Streptococcus mutans and Streptococcus sanguinis by the agar diffusion method. The cytotoxicity of the extract (CC50) was determined using the MDCK cell line. Results: The results showed that the methanolic extract of Dracontium loretense had inhibitory effect on Streptococcus mutans and Streptococcus sanguinis with inhibition halos of 14.10 ± 0.65mm and 15.58 ± 0.43mm, respectively. However, no inhibitory effect was observed on Candida albicans. The minimum inhibitory concentration (MIC) of the methanolic extract of Dracontium loretense on strains of Streptococcus mutans was 500 μg/ml. While the MIC on Streptococcus sanguinis was 62.5μg / ml. The cytotoxicity of the methanolic extract of Dracontium loretense on the MDCK cell line was evaluated in a range of 0 to 900 μg / ml, showing that it is not cytotoxic in high concentrations. Conclusion: The experimental findings showed that Dracontium loretense (Jergon Sacha) presented an antibacterial effect on the strains of Streptococcus mutans and Streptococcus sanguinis. However, it did not present an antifungal effect on strains of Candida albicans. The extract of this plant is not cytotoxic even in high concentrations.