Quality monitoring of dairy products in the city of Juiz de Fora and around by physical and chemical analysis

Abstract

The quality control of foods is an essential factor for the promotion of public health. Considering the milk and dairy products as food of high nutritional value for humans and a social activity that has significant economic impact in Brazil, it is essential to highlight the role of quality and standardization of these products. This work was conducted at the Analysis of Food and Water, Faculty of Pharmacy and Biochemistry, Federal University of Juiz de Fora (LAAA). From january 2005 to march 2010 were evaluated with respect to their physical-chemical, 487 samples of dairy products of industrial establishments of Juiz de Fora and region. The results were compared with the current legislation of products to evaluate them on their compliance. Products that had higher percentage of samples disagreement were condensed sweet milk (95%) due to low levels of fat and protein; "Minas Frescal" cheese (69%) due high fat in dry matter and Parmesan cheese (67%) due to high moisture content. The results of physical-chemical analysis revealed the occurrence of high proportion (43%) of all samples of the products in violation of the legislation in at least one aspect. The study demonstrated the need for greater control in the production process to standardize the composition of products, compliance, optimize profits for manufacturers and ensuring consumer rights.