Avaliação da atividade antimicrobiana do própolis, óleo de geraniol e extrato de casca de abacate no controle de microrganismos causadores de mastite bovina

Abstract

Mastitis is the most frequent disease with the greatest economic impact on dairy herds worldwide. Its control carried out by traditional antimicrobials leaves the presence of drug residues in the milk and has generated great losses for producers, in addition to serious public health problems. In recent years, the number of researches that seek alternative methods and/or products that can be used in the prevention and treatment of various diseases has grown exponentially. In this context, the present study aimed to evaluate the potential of three natural products, with recognized biological properties, ie, propolis, geraniol and avocado peel extract, in the control of microorganisms that cause bovine mastitis, using in vitro study models, against Staphylococcus aureu and Streptococcus agalactiae bacteria. For the investigation of the antimicrobial potential, the agar diffusion method was used and for the determination of the Minimum Inhibitory Concentration (MIC), the well dilution method was used. The results showed that geraniol and avocado peel extract are very active compounds for the control of Staphylococcus aureu and Streptococcus agalactiae bacteria.