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Revista Cubana de Plantas Medicinales
versión On-line ISSN 1028-4796
Resumen
MENESES GARCIA, Ana Paula y FRANCA ORLANDA, José Fábio. Evaluation of in vitro antimicrobial activity of a crude hydroalcoholic extract from Mangifera indica Linneau. Rev Cubana Plant Med [online]. 2014, vol.19, n.3, pp. 189-198. ISSN 1028-4796.
Introduction: natural products obtained from plants play an important role in the process of discovery of new drugs, either as structural models for the synthesis of new molecules or due to their pharmacological properties. A widely used medicinal plant is Mangifera indica Linneau, of the family Anacardiaceae. Popularly known as 'mango', it is used to treat infection, though its effect has not been scientifically validated. Objective: evaluate the phytochemical composition and antimicrobial activity in vitro of the hydroalcoholic extract from Mangifera indica L. using the disk diffusion method. Methods: the crude extract was prepared from dry leaves macerated for 15 days at a proportion of 30 g to 300 ml of 95 % ethanol. After filtration, the extract was concentrated and dried to obtain the crude ethanol extract. Antimicrobial activity was determined by the disc diffusion method on Mueller-Hinton agar medium, in compliance with Standard M07-A8. Tests were performed in triplicate and results were expressed in millimeters (mm). The diameter of inhibition areas around the discs is formed in three replicates. Results: results show that the crude hydroalcoholic extract from M. indica had antimicrobial activity in vitro against the S. aureus strain with a minimum inhibitory concentration (MIC) of 1.0 μg.disc-1. No antimicrobial activity was observed against gram-negative bacteria ( E. coli, P. aeruginosa and S. typhi). Conclusion: the crude hydroalcoholic extract from Mangifera indica L. displayed antimicrobial activity against Staphylococcus aureus, providing scientific evidence for its potential therapeutic use.
Palabras clave : Mangifera indica L.; pathogenic bacteria; antibacterial activity.