Can spectroscopy geographically classify Sauvignon Blanc wines from Australia and New Zealand?

Cozzolino, D, Cynkar, W, Shah, N and Smith, P 2011, 'Can spectroscopy geographically classify Sauvignon Blanc wines from Australia and New Zealand?', Food Chemistry, vol. 126, no. 2, pp. 673-678.


Document type: Journal Article
Collection: Journal Articles

Title Can spectroscopy geographically classify Sauvignon Blanc wines from Australia and New Zealand?
Author(s) Cozzolino, D
Cynkar, W
Shah, N
Smith, P
Year 2011
Journal name Food Chemistry
Volume number 126
Issue number 2
Start page 673
End page 678
Total pages 6
Publisher Elsevier BV
Abstract The combination of UV, visible (Vis), near-infrared (NIR) and mid-infrared (MIR) spectroscopy with multivariate data analysis was explored as a tool to classify commercial Sauvignon Blanc (Vitis vinifera L., var. Sauvignon Blanc) wines from Australia and New Zealand. Wines (n = 64) were analysed in transmission using UV, Vis, NIR and MIR regions of the electromagnetic spectrum. Principal component analysis (PCA), soft independent modelling of class analogy (SIMCA) and partial least squares discriminant analysis (PLS-DA) were used to classify Sauvignon Blanc wines according to their geographical origin using full cross validation (leave-one-out) as a validation method. Overall PLS-DA models correctly classified 86% of the wines from New Zealand and 73%, 86% and 93% of the Australian wines using NIR, MIR and the concatenation of NIR and MIR, respectively. Misclassified Australian wines were those sourced from the Adelaide Hills of South Australia. These results demonstrate the potential of combining spectroscopy with chemometrics data analysis techniques as a rapid method to classify Sauvignon Blanc wines according to their geographical origin.
Subject Sensor Technology (Chemical aspects)
Keyword(s) Classification
Geographical origin
Mid-infrared
Near-infrared
Sauvignon Blanc
UV
Visible
Wine
DOI - identifier 10.1016/j.foodchem.2010.11.005
Copyright notice © 2010 Elsevier
ISSN 0308-8146
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