Title: Utilisation of mid-infrared spectroscopy for determination of the geographic origin of Gruyere PDO and L'Etivaz PDO Swiss cheeses
Authors: Karoui, Romdhane ×
Mazerolles, Gerard
Bosset, Jacques-Olivier
De Baerdemaeker, Josse
Dufour, Eric #
Issue Date: 2007
Publisher: Elsevier sci ltd
Series Title: Food chemistry vol:105 issue:2 pages:847-854
Abstract: The potential of mid-infrared spectroscopy (MIR), using an attenuated total reflectance (ATR) cell, was evaluated for the authentication of 25 Gruyere PDO and L'Etivaz PDO cheeses produced at different altitudes in Switzerland. In order to test the ability of MIR to authenticate the investigated cheeses, chemometric tools, such as principal component analysis (PCA) and factorial discriminant analysis (FDA), were applied to the three spectral regions of the MIR (e.g. 3000-2800 cm(-1), 1700-1500 cm(-1), and 1500-900 cm(-1)). By applying the FDA to the first 10 principal components (PCs) of the PCA applied to each spectral regions, the best rate of correct classification was obtained in the 3000-2800 cm(-1) and 1500-900 cm(-1) spectral regions, since 90.5% and 90.9% were achieved, respectively. It can be concluded that these two spectral regions could be considered as valuable tools for the determination of the geographical origin of the investigated cheeses. (c) 2007 Elsevier Ltd. All rights reserved.
ISSN: 0308-8146
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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