Evaluation of Geographic Origin of Torrontés Wines by Chemometrics
2013; Canadian Center of Science and Education; Volume: 2; Issue: 5 Linguagem: Inglês
10.5539/jfr.v2n5p48
ISSN1927-0895
AutoresSilvana M. Azcarate, Miguel Á. Cantarelli, Eduardo J. Marchevsky, José M. Camiña,
Tópico(s)Spectroscopy and Chemometric Analyses
Resumo<p>This work discusses the determination of the provenance of commercial Torrontés wines from different Argentinean provinces (Mendoza, San Juan, Salta and Rio Negro) by the use of UV-vis spectroscopy and chemometric techniques. In order to find classification models, wines (n = 80) were analyzed using UV-Vis region of the electromagnetic spectrum. Principal component analysis (PCA), linear discriminant analysis (LDA) and partial least squares discriminant analysis (PLS-DA) were used to classify Torrontés wines according to their geographical origin. Classification rates obtained were highly satisfactory. The PLS-DA and LDA calibration models showed that 100% of the Mendoza, San Juan, Salta and Rio Negro Torrontés wine samples had been correctly classified. These results demonstrate the potential use of UV spectroscopy with chemometric data analysis as a method to classify Torrontés wines according to their geographical origin, a procedure which requires low-cost equipment and short-time analysis in comparison with other techniques.</p>
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