Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/162528
Title: | The hidden face of wine polyphenol polymerization highlighted by high resolution mass spectrometry |
Author: | Vallverdú i Queralt, Anna Meudec, Emmanuelle Eder, M. Lamuela Raventós, Rosa Ma. Sommerer, Nicolas Cheynier, Veronique |
Keywords: | Vi Raïms Flavonoides Espectrometria de masses Polimerització Polifenols Tanins Wine Grapes Flavonoids Mass spectrometry Polymerization Polyphenols Tannins |
Issue Date: | 15-May-2017 |
Publisher: | De Gruyter Open |
Abstract: | Polyphenols, including tannins and red anthocyanin pigments, are responsible for the color, taste, and beneficial health properties of plant-derived foods and beverages, especially in red wines. Known compounds represent only the emerged part of the "wine polyphenol iceberg". It is believed that the immersed part results from complex cascades of reactions involving grape polyphenols and yeast metabolites. We used a nontargeted strategy based on high-resolution mass spectrometry and Kendrick mass defect plots to explore this hypothesis. Reactions of acetaldehyde, epicatechin, and malvidin-3-O-glucoside, representing yeast metabolites, tannins, and anthocyanins, respectively, were selected for a proof-of-concept experiment. A series of compounds including expected and so-farunknown structures were detected. Random polymerization involving both the original substrates and intermediate products resulting from cascade reactions was demonstrated. |
Note: | Reproducció del document publicat a: https://doi.org/10.1002/open.201700044 |
It is part of: | Open Chemistry, 2017, vol. 6, num. 3, p. 336-339 |
URI: | http://hdl.handle.net/2445/162528 |
Related resource: | https://doi.org/10.1002/open.201700044 |
Appears in Collections: | Articles publicats en revistes (Nutrició, Ciències de l'Alimentació i Gastronomia) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
671398.pdf | 1.05 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License