Coliformes totais e termotolerantes em ovos de codorna com tratamento superficial da casca

Abstract

Coturniculture, being less demanding in labor and technification than other creations, has aroused great interest from producers, companies and researchers. In addition to the productive qualities of quails, it is possible to perceive in the last decade the change in the eating habits of the population, which increased the search for quail eggs, which can be found “in natura” or minimally processed, in addition to constituting dishes in restaurants and other commercial environments. Considering the importance of indicating contamination during the manufacturing process or even post-processing, the objective was to evaluate the microbiological quality of quail eggs, by quantifying the presence of total coliforms, thermotolerant in quail eggs treated with different concentrations of propolis residues, at room temperature and refrigerated. 240 twins were analyzed, divided into 6 treatments and 5 evaluation periods. The determination of the Most Likely Number of total and thermotolerant coliforms (NMP / mL) was performed using the multiple tube technique. The results obtained for NMP in egg washing water at 28 ° C were positive in all treatments, except for treatments with 5% and 20% propolis residue. For washing chilled eggs, the 7th day showed higher readings. For the internal content of the eggs, the control treatment showed NMP above the standards and for the cooled eggs there were only indicative samples on the 7th and 14th day. None of the samples had a positive count of thermotolerant coliforms at 45 ° C. However, further studies on methods that allow higher microbiological quality of eggs are needed.