Classification of Argentinean Sauvignon Blanc Wines by UV Spectroscopy and Chemometric Methods

Authors

  • Silvana Mariela Azcarate,

    1. Facultad de Ciencias Exactas y Naturales, Univ. Nacional de La Pampa, La Pampa, Argentina
    2. Inst. de las Ciencias de la Tierra y Ambientales de La Pampa (INCITAP), La Pampa, Argentina
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  • Miguel Ángel Cantarelli,

    1. Facultad de Ciencias Exactas y Naturales, Univ. Nacional de La Pampa, La Pampa, Argentina
    2. Inst. de las Ciencias de la Tierra y Ambientales de La Pampa (INCITAP), La Pampa, Argentina
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  • Roberto Gerardo Pellerano,

    1. Facultad de Ciencias Exactas, Naturales y Agrimensura, Univ. Nacional del Nordeste, Argentina
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  • Eduardo Jorge Marchevsky,

    1. Inst. de Química de San Luis (INQUISAL), San Luis, Argentina
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  • José Manuel Camiña

    Corresponding author
    1. Inst. de las Ciencias de la Tierra y Ambientales de La Pampa (INCITAP), La Pampa, Argentina
    • Facultad de Ciencias Exactas y Naturales, Univ. Nacional de La Pampa, La Pampa, Argentina
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Direct inquiries to author Camiña (E-mail: jcaminia@gmail.com, jcaminia@exactas.unlpam.edu.ar)

Abstract

 Argentina is an important worldwide wine producer. In this country, there are several recognizable provinces that produce Sauvignon blanc wines: Neuquén, Río Negro, Mendoza, and San Juan. The analysis of the provenance of these white wines is complex and requires the use of expensive and time-consuming techniques. For this reason, this work discusses the determination of the provenance of Argentinean Sauvignon blanc wines by the use of UV spectroscopy and chemometric methods, such as principal component analysis (PCA), cluster analysis (CA), linear discriminant analysis (LDA), and partial least square discriminant analysis (PLS-DA). The proposed method requires low-cost equipment and short-time analysis in comparison with other techniques. The results are in very good agreement with results based on the geographical origin of Sauvignon blanc wines.

Practical Application:  This manuscript describes a method to determine the geographical origin of Sauvignon wines from Argentina. The main advantage of this method is the use of nonexpensive techniques, such as UV-Vis spectroscopy.

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