Chemical Profiling of Wines Produced in Bulgaria and Distinction from International Grape Varieties.
| Autor: | Gerginova D; Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria., Simova S; Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria. |
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| Jazyk: | angličtina |
| Zdroj: | ACS omega [ACS Omega] 2023 May 16; Vol. 8 (21), pp. 18702-18713. Date of Electronic Publication: 2023 May 16 (Print Publication: 2023). |
| DOI: | 10.1021/acsomega.3c00636 |
| Abstrakt: | Distinguishing the botanical and geographical origin of wine is important to prevent wine adulteration and to determine its quality. The combined use of 1 H NMR profiling and chemometrics allows the quantification of 31 common organic components in the NMR spectra of 70 wines from different sources. Using the NMR metabolomics approach, a successful differentiation of wines produced from Bulgarian and international grape varieties is achieved using linear discriminant analysis. Wines produced from typical local grape varieties contain higher average amounts of galacturonic, malic, tartaric, and succinic acid, alanine, choline, several alcohols, and saccharides arabinose, galactose, and sucrose than imported wine assortments. A practical decision tree is proposed for distinguishing 15 different grape varieties based on the amounts of the common wine components. An example of distinction of real from diluted wine via creation of a PLS-DA model is presented. Wines from the two subregions officially recognized by the EU at the Protected Geographical Indication (PGI) level are unequivocally recognized. Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society.) |
| Databáze: | MEDLINE |
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