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Authentication of Riesling wines from the Czech Republic on the basis of the non-flavonoid phenolic compounds

Author

Listed:
  • Pavel Pavloušek

    (Department of Viticulture and Oenology, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic)

  • Michal Kumšta

    (Department of Viticulture and Oenology, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic)

Abstract

Eighteen non-flavonoid phenolic compounds comprising hydroxybenzoic acids, hydroxycinnamates, and stilbenes were analysed in 43 monovarietal wines originated from five wine-growing regions in the Czech Republic. The non-flavonoid phenolic compounds in wine were analysed by a HPLC method. The methods of multivariate statistical analysis were used for the wine discrimination on the basis of the geographical origin. The canonical discriminant analysis (CDA) proved the possibility to discriminate wines according to their provenance on the basis of the following parameters: protocatechuic acid, p-hydroxybenzoic acid, caftaric acid, p-coutaric acid, trans-resveratrol, and cis-resveratrol. On the basis of statistical analyses, 95.4% of the wine samples were correctly classified. The results therefore indicate that the non-flavonoid phenolic compounds can be used to discriminate the geographical origin of white wines.

Suggested Citation

  • Pavel Pavloušek & Michal Kumšta, 2013. "Authentication of Riesling wines from the Czech Republic on the basis of the non-flavonoid phenolic compounds," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 31(5), pages 474-482.
    • Handle: RePEc:caa:jnlcjf:v:31:y:2013:i:5:id:40-2013-cjfs
    DOI: 10.17221/40/2013-CJFS
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    References listed on IDEAS

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    1. K. Faitová & A. Hejtmánková & J. Lachman & V. Pivec & J. Dudjak, 2004. "The contents of total polyphenolic compounds and trans-resveratrol in white Riesling originated in the Czech Republic," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 22(6), pages 215-221.
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