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Revista Ciencias de la Salud

versão impressa ISSN 1692-7273

Resumo

DE SOUSA, Amanda T. L et al. Evaluation of the Antibacterial Activity of Methanolic and Hexanic Extracts of Puff Pastry Stem, Melissa Officinalis. Rev. Cienc. Salud [online]. 2016, vol.14, n.2, pp.201-210. ISSN 1692-7273.  https://doi.org/10.12804/revsalud14.02.2016.05.

Introduction: Melissa officinalis, of the Lamiaceae family, is a herb commonly used on folk medicine. In Brazil it is known as Melissa, erva cidreira, cidrilha and meliteia. Considering that the M. Officinalis L is widely used in folk medicine, as for antibacterial use, among others, the main objective of this work was to evaluate the antibacterial and modulating activity of methanolic and hexanic extracts of M. officinalis L against pattern and multidrug resistant bacterial strains. Material and methods: The methanolic and hexanic extracts of the stem of puff pastry of M. officinalis L were analized to determine antibacterial activity by using the microdiluition for establishing the minimal inibitory concentration (MIC) and aminoglycosides (gentamicin and amikacin) modulation. Results: In the MIC evaluation, the results obtained were ≥1024 μg/mL against bacteria (Escherichia coli and Staphylococcus aureus) in both extracts. The methanolic extract showed important results when associated with gentamicin, since it potentiates its effect against E. coli and S. aureus when associated with amikacin, where antagonism was found. As to the hexanic extract, it showed a MIC reduction of amikacin and gentamicin against S. aureus strains. Conclusion: It was concluded that the plant material influences the antimicrobial behavior, a fact that makes this study an important parameter to deeper studies to combat the increase of pathogenic multidrug-resistant bacteria.

Palavras-chave : Antimicrobial activity; Melissa Officinalis; Escherichia coli; Staphylococcus aureus.

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