Discrimination between Shiraz wines from different Australian regions: The role of spectroscopy and chemometrics

Riovanto, R, Cynkar, W, Berzaghi, P and Cozzolino, D 2011, 'Discrimination between Shiraz wines from different Australian regions: The role of spectroscopy and chemometrics', Journal of Agricultural and Food Chemistry, vol. 59, no. 18, pp. 10356-10360.


Document type: Journal Article
Collection: Journal Articles

Title Discrimination between Shiraz wines from different Australian regions: The role of spectroscopy and chemometrics
Author(s) Riovanto, R
Cynkar, W
Berzaghi, P
Cozzolino, D
Year 2011
Journal name Journal of Agricultural and Food Chemistry
Volume number 59
Issue number 18
Start page 10356
End page 10360
Total pages 5
Publisher American Chemical Society
Abstract This study reports the use of UV-visible (UV-vis), near-infrared (NIR), and midinfrared (MIR) spectroscopy combined with chemometrics to discriminate among Shiraz wines produced in five Australian regions. In total, 98 commercial Shiraz samples (vintage 2006) were analyzed using UV-vis, NIR, and MIR wavelength regions. Spectral data were interpreted using principal component analysis (PCA), linear discriminant analysis (LDA), and soft independent model of class analogy (SIMCA) to classify the wine samples according to region. The results indicated that wine samples from Western Australia and Coonawarra can be separated from the other wines based on their MIR spectra. Classification results based on MIR spectra also indicated that LDA achieved 73% overall correct classification, while SIMCA 95.3%. This study demonstrated that IR spectroscopy combined with chemometric methods can be a useful tool for wine region discrimination.
Subject Sensor Technology (Chemical aspects)
Keyword(s) Australia
classification
MIR
NIR
regionality
Shiraz
wine
DOI - identifier 10.1021/jf202578f
Copyright notice © 2011 American Chemical Society
ISSN 0021-8561
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