Resumen de Concentración Inhibitoria Mínima de tres extractos de plantas medicinales sobre bacterias del género Aeromonas, causantes de enfermedades en peces

Madelin Nuñez, Mayleé Pozo Escobar, Josefa Valladares

• español

  Se determinó la concentración inhibitoria mínima de extractos de Eucalyptus sp., Schinus terebintifolius y Cassia alata frente a tres especies bacterianas del género Aeromonas, patógenas de peces. Se empleó el método de diluciones seriadas dobles en medio líquido con una concentración bacteriana de 108UFC/mL. Los resultados demostraron que Aeromonas salmonicida atípica tuvo la mayor sensibilidad al actuar con los tres extractos con valores de CIM entre 0.19 mg/mL y 0.32 mg/mL. Todos los extractos evaluados tuvieron actividad bactericida sobre al menos una de las especies ensayadas. El extracto de Eucalyptus sp. mostró esta actividad sobre el 100 % de las cepas probadas.

  The minimal inhibitory concentration of Eucalyptus sp., Schinus terebintifolius and Cassia alata extracts was determined in three bacterial species of Aeromonas genus, of pathogenic-fish. Doble serial dilutions method in liquid medium were used with a bacterial concentration of 108UFC/mL. The results showed that Aeromonas salmomicida atipica had the highest sensibility when acting upon the extracts previously mentioned whose values of minimal inhibitory concentration ranged between 0.10 mg/mL and 0.32 mg/mL . All the extracts assessed had a bactericide activity related to at least one of the species tested. The Eucalyptus sp. extracts showed a bactericide activity above 100% of the strains tested.

• English

  The minimal inhibitory concentration of Eucalyptus sp., Schinus terebintifolius and Cassia alataextracts was determined in three bacterial species of Aeromonas genus, of pathogenic-fish. Dobleserial dilutions method in liquid medium were used with a bacterial concentration of 108UFC/mL.The results showed that Aeromonas salmomicida atipica had the highest sensibility when actingupon the extracts previously mentioned whose values of minimal inhibitory concentration rangedbetween 0.10 mg/mL and 0.32 mg/mL . All the extracts assessed had a bactericide activity relatedto at least one of the species tested. The Eucalyptus sp. extracts showed a bactericide activityabove 100% of the strains tested.