AVALIAÇÃO DA QUALIDADE FÍSICO-QUÍMICA E MICROBIOLÓGICA DE FILÉ DE TILÁPIA COMERCIALIZADO EM APARECIDA DE GOIÂNIA – GO

Abstract

Quality control consists of a set of operations aimed at verifying whether the product complies with current laws that guarantee food safety and quality. This study aimed to evaluate the physical-chemical and microbiological quality of tilapia fillet sold in the city of Aparecida de Goiânia-GO. Physicochemical analyzes were performed to determine the contents of Dry Matter (DM), Mineral Matter (MM) or Ash, Moisture and pH. The results of the laboratory analyzes were compared with the minimum and maximum values allowed by the Ministry of Agriculture, Livestock and Supply (MAPA). The results obtained were submitted to ANOVA analysis of variance and Tukey's test at the 5% level to verify the interaction between the means. After the conclusion of the microbiological analysis, the results found in this work for total coliforms were only one tilapia fillet sample called (A3). Presenting number less than 10 NMP/g of Sample. Of these samples, none showed confirmation for thermotolerant coliforms. While for the physicochemical analyses, the pH results indicated an average of 6.73, with sample C (6.88) showing the highest value followed by samples A (6.65) and S (6.64). For moisture content, sample C (79.21%) showed higher values compared to samples S (79.99%) and A (76.66%). In the evaluation of Mineral Matter or ash, sample A (1.9%) and S (1.9%) obtained a higher value compared to sample C (1.7%). In terms of Dry Matter, it was observed that samples A (23.33%) C (20.78%) and S (24.16) differ statistically from each other, with sample S showing the highest value. The physical-chemical and microbiological analyzes comply with the Brazilian Legislation.