To evaluate the susceptibility ofPseudomonas aeruginosa(P. aeruginosa)in vitroto the ethanolic extracts obtained from five different Peruvian medicinal plants.
The plants were chopped and soaked in absolute ethanol (1:2, w/v). The antibacterial activity of compounds againstP. aeruginosawas evaluated using the cup-plate agar diffusion method.
The extracts fromMaytenus macrocarpa(“Chuchuhuasi”),Dracontium loretenseKrause (“Jergon Sacha”),Tabebuia impetiginosa(“Tahuari”),Eucalyptus camaldulensisDehn (eucalyptus),Uncaria tomentosa(“Uña de gato”) exhibited favorable antibacterial activity againstP. aeruginosa. The inhibitory effect of the extracts on the strains ofP. aeruginosatested demonstrated thatTabebuia impetiginosaandMaytenus macrocarpapossess higher antibacterial activity.
The results of the present study scientifically validate the inhibitory capacity of the five medicinal plants attributed by their common use in folk medicine and contribute towards the development of new treatment options based on natural products.