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  • 标题:Evaluation of Geographic Origin of Torrontés Wines by Chemometrics
  • 本地全文:下载
  • 作者:Silvana Azcarate ; Miguel Cantarelli ; Eduardo Marchevsky
  • 期刊名称:Journal of Food Research
  • 印刷版ISSN:1927-0887
  • 电子版ISSN:1927-0895
  • 出版年度:2013
  • 卷号:2
  • 期号:5
  • 页码:48
  • DOI:10.5539/jfr.v2n5p48
  • 出版社:Canadian Center of Science and Education
  • 摘要:

    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.

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