Antimicrobial Efficiency of Commercial Products for Drinking Water Based on Organic and/or Inorganic Acids Against Bacteria of Interest in Animal and Human Health

Abstract

Objective: This study aims to evaluate the effects of acidity regulators based on organic and inorganic acids for drinking water on pathogens of importance in swine and poultry farming using the Minimum Inhibitory Concentration (MIC) test. Theoretical Framework: The presence of intestinal pathogens in livestock production systems is a major global concern due to their impact on both animal and public health. Pathogens like Salmonella spp. and Escherichia coli are among the main microorganisms that adversely affect these systems, resulting in significant economic losses. Limitations on the use of antimicrobials, due to microbial resistance, require adopting alternative solutions for pathogen control. Method: The statistical analysis of the MIC of acidity regulators against the microorganisms was performed using the Kruskal-Wallis test, followed by the Student-Newman-Keuls post-test (p<0.05) with GraphPad Prism software, version 8.0.1. Results and Discussion: It was observed that the sensitization profile of the microorganisms differed depending on the species. Among the Salmonella serovars, there was a difference in the resistance profile between typhoidal and non-typhoidal Salmonella concerning the evaluated products. The results showed that among the commercially available acidifiers evaluated, only five were effective against all the microorganisms tested.