Discrimination of adulterants in UHT milk samples by NIRS coupled with supervision discrimination techniques

Discrimination of adulterants in UHT milk samples by NIRS coupled with supervision discrimination techniques

A methodology was developed for distinguishing different ultra-high temperature (UHT) milk adulterants (water, urea, and formaldehyde) at various levels using NIR spectroscopy (NIRS) coupled with supervision discrimination techniques (SIMCA, SVM-DA, and PLS-DA). The figures of merit in discriminatio...

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Veröffentlicht in:Analytical methods 2016-01, Vol.8 (39), p.724-728
Hauptverfasser: Luna, Aderval S, Pinho, Jéssica S. A, Machado, Luciana C
Format: Artikel
Sprache:eng
Schlagworte:
Adulterants
Discrimination
Formaldehyde
Mathematical analysis
Milk
Preprocessing
UHT
Ureas
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creator Luna, Aderval S
Pinho, Jéssica S. A
Machado, Luciana C
description A methodology was developed for distinguishing different ultra-high temperature (UHT) milk adulterants (water, urea, and formaldehyde) at various levels using NIR spectroscopy (NIRS) coupled with supervision discrimination techniques (SIMCA, SVM-DA, and PLS-DA). The figures of merit in discrimination were established based on the results given by the best preprocessing for each technique. Discrimination of formaldehyde was 100% independent of the discrimination technique used. For water discrimination SVM-DA furnished better results as compared to PLS-DA and SIMCA. The same occurred with urea discrimination as well. A methodology was developed for distinguishing different ultra-high temperature (UHT) milk adulterants (water, urea, and formaldehyde) at various levels using NIR spectroscopy (NIRS) coupled with supervision discrimination techniques (SIMCA, SVM-DA, and PLS-DA).
doi_str_mv 10.1039/c6ay01351a
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source Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection
subjects Adulterants
Discrimination
Formaldehyde
Mathematical analysis
Milk
Preprocessing
UHT
Ureas
title Discrimination of adulterants in UHT milk samples by NIRS coupled with supervision discrimination techniques
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