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

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 clas...

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Bibliographic Details
Published in:Beverages (Basel) 2018-12, Vol.4 (4), p.74
Main Authors: Mayr, Christine, De Rosso, Mirko, Dalla Vedova, Antonio, Flamini, Riccardo
Format: Article
Language:English
Subjects:
Amarone
Anthocyanins
Chromatography
Data analysis
Flavanols
Flavonoids
Flavonols
Glycosides
grape
Grapes
High resolution
high-resolution mass spectrometry
Identification
Linalool
Liquid chromatography
Markers
Mass spectrometry
Mass spectroscopy
Metabolites
metabolomics
Monoterpenes
Negro Amaro
Nitrogen
Primitivo
Raboso
Recioto
Scientific imaging
Secondary metabolites
Software
Spectroscopy
Substitutes
Terpineol
traceability
wine
Wines
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Summary: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.
ISSN:2306-5710
2306-5710
DOI:10.3390/beverages4040074