Microbial susceptibility of bacteria and fungi against extracts of Psidium guajava L.: in vitro evaluation

  • Rafael Menezes Silva Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
  • Maurício da Rocha Dourado Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
  • Marcela Quintão Penha Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
  • Luana Gischewski Campos Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
  • Monize Ferreira Figueiredo de Carvalho Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
  • Donaldo Rosa Pires Júnior Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM

Resumo

Aim: The present study aimed to evaluate the in vitro antimicrobial activity of hydroalcoholic and aqueous extracts from leaves of P. guajava on four bacterial and two fungal samples to determine the range of minimum inhibitory concentration of the extracts. Material and Methods: The antimicrobial activity of extracts of different polarities was compared using the agar dilution method. Differences in susceptibility to the active ingredient could be observed. Results: The results showed that the hydroalcoholic extract was active against Escherichia coli (1024 μg/ml) and Bacillus cereus (900 μg/ml). The aqueous extract showed no antimicrobial activity. Conclusions: Despite demonstrating antimicrobial efficiency, the P. guajava extract may be insufficient or may require a higher concentration to be fully effective.
Uniterms: Psidium. Products with antimicrobial action. Traditional medicine.

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Biografia do Autor

Rafael Menezes Silva, Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
Programa de Pós-Graduação em Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, MG, Brasil
Maurício da Rocha Dourado, Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
Programa de Pós-Graduação em Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, MG, Brasil
Marcela Quintão Penha, Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
Departamento de Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, MG, Brasil
Luana Gischewski Campos, Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
Departamento de Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, MG, Brasil
Monize Ferreira Figueiredo de Carvalho, Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM

Programa de Pós-Graduação em Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, MG, Brasil

Donaldo Rosa Pires Júnior, Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM
Departamento de Ciências Biológicas e da Saúde (FCBS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, MG, Brasil

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Publicado
2016-06-10
Como Citar
Silva, R. M., Dourado, M. da R., Penha, M. Q., Campos, L. G., Carvalho, M. F. F. de, & Júnior, D. R. P. (2016). Microbial susceptibility of bacteria and fungi against extracts of Psidium guajava L.: in vitro evaluation. Arquivos Em Odontologia, 49(2). Recuperado de https://periodicos.ufmg.br/index.php/arquivosemodontologia/article/view/3627
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Artigos