Issue 22, 2015

Performance improvement and single laboratory validation of classical qualitative methods for the detection of adulterants in milk: starch, chlorides and sucrose

Abstract

Milk stands out among the foods that are subject to adulteration. Several studies have shown that milk adulteration is a reality in many countries, despite the existing inspection routines. Furthermore, there is an aggravating factor in that there are no reports in the literature concerning the validation of the classical qualitative methods that are commonly used to detect fraud in milk and that are described in the legislation. In the present study, a novel validation approach was applied on classical qualitative methods related to the detection of the density restoratives starch, chlorides and sucrose in raw milk, considering the official and modified versions. Rates, unreliability regions, detection limits, accordance, concordance, selectivity and robustness were estimated. Although simple, the proposed modifications significantly increased the efficiency of the methods, generating a lower frequency of errors or false results and a reduction in the detection limits and uncertainty ranges, consequently enhancing the capability of detecting adulterations.

Graphical abstract: Performance improvement and single laboratory validation of classical qualitative methods for the detection of adulterants in milk: starch, chlorides and sucrose

Article information

Article type
Paper
Submitted
13 jul 2015
Accepted
05 okt 2015
First published
28 okt 2015

Anal. Methods, 2015,7, 9692-9701

Performance improvement and single laboratory validation of classical qualitative methods for the detection of adulterants in milk: starch, chlorides and sucrose

C. de Souza Gondim, R. Cesar Santos de Souza, M. de Paula Penna e Palhares, R. G. Junqueira and S. V. Carvalho de Souza, Anal. Methods, 2015, 7, 9692 DOI: 10.1039/C5AY01822F

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