Evaluación de la calidad microbiológica del chocho desamargado para el consumo en la ciudad de Cuenca

Abstract

This thesis aims at evaluating the microbiological quality of the grain of chochodesamargado sold in the city of Cuenca. The research was an observational, descriptive, prospective, sectional, was developed between October 2013 and March 2014. The samples for analysis were taken from all the educational institutions of basic urban parishes of the city using a stratified random sampling resulting in 55 establishments were randomly selected at least ceviche of chocho seller. All samples were selected and processed by standardized protocols and the results were compared with the microbiological criteria for Ecuadorian Technical Standard (NTE) INEN 2390:2004 "Legumes. Grain desamargado of chocho.Requirements". The microorganisms used indicators were total coliforms, E. coli, aerobic mesophiles, molds and yeasts analyzed using the method of PetrifilmTM plates. The statistical analysis of the data was developed in the packet SPSS v.22 and EPIDAT 3.0. It was found that the quality indicators most affected were the molds and yeasts with the 94,5 % of the samples that presented counts higher than the criteria laid down. Total coliforms followed with 83,6 % aerobic mesophiles with 56,4 % and E. coli with 25,5 % Approximately 60 % of the samples presented high counts for 3 or more of the microorganisms indicators reflecting the high risk to the health of the consumers of this type of food.