RESEARCH FRAUD IN UHT WHOLE MILK MARKETED IN THE STATE OF RIO DE JANEIRO AND COMPARISON BETWEEN THE METHODS OF PHYSICOCHEMICAL OFFICERS AND THE METHOD OF ULTRASOUND
DOI:
https://doi.org/10.5935/2238-6416.20120077Keywords:
quality control, correlation, fraudulent substances.Abstract
The fraud in raw milk as product and in the milk ready for consumption represents an economic embezzlement and decreased industrial output that can be associated with health problems to consumers. The objectives of this study were to survey the quality of UHT milk sold in the metropolitan region of Rio de Janeiro, trough physical - chemical analysis and detection of the presence of fraud, evaluate the effectiveness of physical - chemical methods, comparing official methods reference to the method of ultrasound. For comparison of the analytical methods, the official methods and the ultrasound (70 Boecolac®) method by wore used. The presence of fraudulent substances wore not detected in 58 samples analyzed. The methods of ultrasound showed low correlation with the official methods for analysis of density, fat, freezing point and solids nonfat. The average values obtained were 3.22% fat, freezing point of - 0.5516ºH, density of 1.029g/ml, pH of 6.69, and acidity of 0,1645% latic acid. The results presented in this study provide information for decisions taken by regulators, processors establishments and inspection of dairy products in directing the choice of methods of quality control to be practiced.
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