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Evaluation of Geographic Origin of Torrontés Wines by Chemometrics

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  • Azcarate, Silvana
  • Cantarelli, Miguel
  • Marchevsky, Eduardo
  • Camiña, José

Abstract

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.

Suggested Citation

  • Azcarate, Silvana & Cantarelli, Miguel & Marchevsky, Eduardo & Camiña, José, 2013. "Evaluation of Geographic Origin of Torrontés Wines by Chemometrics," Journal of Food Research, Canadian Center of Science and Education, vol. 2(5).
    • Handle: RePEc:ags:aesjfr:405111
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