The FTIR-ATR method coupled with the multivariate analysis of specific spectral areas of samples was developed to characterize two white grape varieties (Sauvignon Blanc and Hibernal) and two blue grape varieties (André and Cabernet Moravia) of wine planted and harvested in the Moravia region, Czech Republic. Principal component analysis and hierarchical cluster analysis were performed using fingerprint regions of FTIR spectra for all wines. The results obtained by principal component analysis in combination with linear discriminant analysis (PCA-LDA) scores yielded clear separation between the four classes of samples and showed very good discrimination between the wine samples, with a 91.7% overall classification rate for the samples. The conducted FTIR spectroscopy studies coupled with chemometrics allowed for the swift analysis of multiple wine components with minimal sample preparation. These methods can be used in research to improve specific properties of these wines, which will undoubtedly enhance the quality of the final wine samples obtained.

Department of Biochemistry and Molecular Biology Medical University of Lublin 20 093 Lublin Poland

Department of Biophysics University of Life Sciences in Lublin Akademicka 13 20 950 Lublin Poland

Department of Chemical Technology and Environmental Analytics Krakow University of Technology 31 155 Krakow Poland

Department of Chemistry Faculty of Life Sciences and Biotechnology University of Life Sciences in Lublin Akademicka 15 20 950 Lublin Poland

Department of Horticultural Machinery Mendel University in Brno Valtická 337 691 44 Lednice Czech Republic

ECOTECH COMPLEX Analytical and Programme Centre for Advanced Environmentally Friendly Technologies Maria Curie Sklodowska University Głęboka 39 20 033 Lublin Poland

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