Ação antimicrobiana dos óleos essenciais de Olíbano (Boswellia carterii) e Wintergreen (Gaultheira procumbens) sobre diferentes sorovares de Salmonella spp

Abstract

Veterinary clinical practice faces significant challenges due to contamination by Salmonella bacteria, a pathogen that poses a risk to animal and public health. This end-of-course study addresses the antimicrobial action of Frankincense (Boswellia carterii) and Wintergreen (Gaultheria procumbens) essential oils on Salmonella spp serovars of veterinary clinical interest. The qualitative assessment of the antimicrobial potential of the oils was carried out using disc diffusion tests, while the quantitative data was determined using the Minimum Inhibitory Concentration (MIC) and the Minimum Bactericidal Concentration (MBC). The essential oils were evaluated both on their own and in different combinations. The results indicated that both oils have effective antimicrobial properties against the serovars tested. In the disc diffusion test, the inhibition zones ranged from 6 mm to 12 mm, while the MIC values ranged from 125 μL/mL to 625 μL/mL and the CBM values from 25 μL/mL to 125 μL/mL, depending on the treatment and the Salmonella strain. These findings suggest that essential oils may be a promising alternative to traditional pathogen control methods in veterinary clinical practice, contributing to animal health and reducing the use of antibiotics.