Evaluation of the sanitary quality of integral milk in nature, pasteurized, UHT and powder commercialized in Medianeira and Serranópolis do Iguaçu – Paraná<b/>

Abstract

Milk is one of the main components of human diet and the guarantee of its quality is public health question. The aim of this work was to evaluate the hygienical sanitary conditions of the principal commercialized types of milk in Medianeira and Serranópolis do Iguaçu - Paraná. Twenty integral milk samples were analyzed, being six in nature, five of homogenized pasteurized, five of UHT and four of milk powder. Detection of the aflatoxin M1 consisted in the extraction and purification through an immunoaffinity column (Aflatest-P® and Aflatest-M1®) with subsequent detection fluorimetric. In the antibiotic analyses were used DelvotestÒ-P-multi test kits. The determination of foreign matter followed method of direct filtration. All the methodologies were proposal in the AOAC (2000). Although have been detected Aflatoxin M1 in three samples above lower limit detection of method, the results showed not to exceed the legal limits. Analyzed milk had not presented resulted positive for antibiotics and no foreign matter. In this way, all the samples had presented satisfactory sanitary hygienical quality.