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High-Resolution Mass Spectrometry Identification of Secondary Metabolites in Four Red Grape Varieties Potentially Useful as Traceability Markers of Wines

1
Council for Agricultural Research and Economics-Viticulture & Enology (CREA-VE), Viale XXVIII Aprile 26, 31015 Conegliano (TV), Italy
2
Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNE), University of Padova, 35020 Legnaro (PD), Italy
*
Author to whom correspondence should be addressed.
Beverages 2018, 4(4), 74; https://doi.org/10.3390/beverages4040074
Received: 3 August 2018 / Revised: 13 September 2018 / Accepted: 19 September 2018 / Published: 5 October 2018
(This article belongs to the Special Issue Wine traceability)
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Abstract

Liquid chromatography coupled to high-resolution mass spectrometry (LC-Q/TOF) is a powerful tool to perform chemotaxonomic studies through identification of grape secondary metabolites. In the present work, the metabolomes of four autochthonous Italian red grape varieties including the chemical classes of anthocyanins, flavonols/flavanols/flavanones, and terpenol glycosides, were studied. By using this information, the metabolites that can potentially be used as chemical markers for the traceability of the corresponding wines were proposed. In Raboso wines, relatively high abundance of both anthocyanic and non-anthocyanic acyl derivatives, is expected. Potentially, Primitivo wines are characterized by high tri-substituted flavonoids, while Corvina wines are characterized by higher di-substituted compounds and lower acyl derivatives. Negro Amaro wine’s volatile fraction is characterized by free monoterpenes, such as α-terpineol, linalool, geraniol, and Ho-diendiol I. A similar approach can be applied for the traceability of other high-quality wines. View Full-Text
Keywords: wine; grape; traceability; metabolomics; high-resolution mass spectrometry; Amarone; Recioto; Raboso; Primitivo; Negro Amaro wine; grape; traceability; metabolomics; high-resolution mass spectrometry; Amarone; Recioto; Raboso; Primitivo; Negro Amaro
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Mayr, C.M.; De Rosso, M.; Dalla Vedova, A.; Flamini, R. High-Resolution Mass Spectrometry Identification of Secondary Metabolites in Four Red Grape Varieties Potentially Useful as Traceability Markers of Wines. Beverages 2018, 4, 74.

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