Detección de Salmonella spp y Escherichia coli en muestras de carne de pollo que se expende en el cantón Ambato

Abstract

The greatest health risk associated with the consumption of chicken meat are foodborne diseases, due to its ability to serve as a vehicle for pathogenic bacteria, it is important to study it. The present research aimed to detect the presence of Salmonella spp. and Escherichia coli in samples of chicken meat, which is sold in Ambato. The methodology that was used consisted of taking 90 samples of chicken meat, 45 samples from informal stores and 45 samples from authorized stores; with which we worked in the Microbiology Laboratory of “Universidad Técnica de Ambato”, counting aerobic mesophiles, sowing in selective agars such as MacConkey and XLD, Gram staining and biochemical tests such as TSI, oxidase and catalase. The result obtained was that all the samples taken from the stores were contaminated with some type of bacteria. Contaminated with Escherichia coli 8.1% of certified retail stores and 84.4% of informal stores; followed by Salmonella spp. with it 8.1% of certified premises and 48.8% of informal premises. The result of the count of aerobic mesophiles in the chicken meat samples demonstrates the relationship that exists between the minimum conditions of a retail stores and the microbiological quality of the chicken meat, highlighting that the hygiene of the premises, meat conservation and measures protection of the seller in the informal outlets have a significant difference with respect to the certified stores.