Antimicrobial activity of caatinga biome ethanolic plant extracts against gram negative and positive bacteria

Autori

  • Maria da Conceição A. de Sá Laboratório de Microbiologia e Imunologia Animal da Universidade Federal do Vale do São Francisco
  • Rodolfo de M. Peixoto Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano, Campus Floresta
  • Cristina da C. Krewer Departamento de Morfologia da Universidade Federal de Santa Maria, 97119-900, Santa Maria, RS, Brasil
  • Jackson Roberto G. da Silva Almeida Núcleo de Estudos e Pesquisas de Plantas Medicinais da Universidade Federal do Vale do São Francisco, 56304-205, Petrolina, PE, Brasil
  • Aguedade C. Vargas Departamento de medicina veterinária preventiva da Universidade Federal de Santa Maria, 97119-900, Santa Maria, RS, Brasil
  • Mateus M. da Costa Laboratório de Microbiologia e Imunologia Animal da Universidade Federal do Vale do São Francisco, 56300-990, Petrolina,PE, Brasil

Parole chiave:

ethanolic extracts, sensitivity tests, pathogens, veterinary medicine

Abstract

The search for phytotherapeutic (medicinal plant) treatments has been intensified in recent decades. The abusive use ofantimicrobial drugs, selection of resistant bacteria and inadequate handling conditions are issues that have an impact onveterinary medicine. With this in mind, the objective of this study was to evaluate the antibacterial activity of ethanolic extractsof caatinga biome plants against pathogens of veterinary interest. Six ethanolic extracts of plants existing in the Caatingabiome of the Pernambuco semi-arid region were used, namely: Amburana cearensis A.C.Smith, Selaginella convolutaArn.(Spring), Hymenaea courbaril L., Neoglaziovia variegata (Arruda) Mez., Bromelia laciniosa Mart. and Encholirium spectabileMart. The antibacterial activity of these extracts was tested against. gram negative and positive bacteria. The minimumbactericidal concentration (MBC) for each extract was determined. Tests were carried out in triplicate. Antibacterial activities inthe genuses studied were found for the extracts evaluated, with the exception of Proteus spp., Nocardia spp., Staphylococcuscaprae and Streptococcus agalactiae. Amburana cearensis and Neoglaziovia variegata exhibited the lowest MBC values.Considering the low cost of phytotherapy and the activity of the caatinga biome plants, other studies related to the activity invivo and the phytochemical characterization become necessary

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Pubblicato

2011-12-30

Fascicolo

Sezione

Medicina Veterinária Preventiva