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J Dairy Sci ; 89(3): 859-61, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16507678

RESUMO

In Argentina, one analytical method is usually carried out to determine acidity in whole raw milk: the Instituto Nacional de Racionalización de Materiales standard (no. 14005), based on the Dornic method of French origin. In a national and international regulation, the Association of Official Analytical Chemists International method (no. 947.05) is proposed as the standard method of analysis. Although these methods have the same foundation, there is no evidence that results obtained using the 2 methods are equivalent. The presence of some trends and discordant data lead us to perform a statistical study to verify the equivalency of the obtained results. We analyzed 266 samples and the existence of significant differences between the results obtained by both methods was determined.


Assuntos
Indústria de Laticínios/métodos , Leite/química , Animais , Argentina , Colorimetria/métodos , Concentração de Íons de Hidrogênio , Indicadores e Reagentes , Ácido Láctico/análise , Fenolftaleína
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