Physicochemical Studies of New Anthocyano‐Ellagitannin Hybrid Pigments: About the Origin of the Influence of Oak C ‐Glycosidic Ellagitannins on Wine Color (Eur. J. Org. Chem. 1/2010)
2009; Wiley; Volume: 2010; Issue: 1 Linguagem: Inglês
10.1002/ejoc.200990106
ISSN1434-193X
AutoresStefan Chassaing, Dorothée Lefeuvre, Rémi Jacquet, Michaël Jourdes, Laurent Ducasse, Stéphanie Galland, Axelle Grélard, Cédric Saucier, Pierre‐Louis Teissèdre, Olivier Dangles, Stéphane Quideau,
Tópico(s)Phytochemicals and Antioxidant Activities
ResumoAbstract The cover picture shows the bathochromism observed when the grape‐derived wine red pigment oenin reacts with the oak‐derived C ‐glycosidic ellagitannin vescalagin to furnish the deep‐purple anthocyano‐ellagitannin 1‐deoxyvescalagin‐(1β→8)‐oenin. Results of a detailed physicochemical characterization of this fascinating new hybrid pigment are discussed in the article by O. Dangles S. Quideau, et al. on p. 55 ff. Such a bathochromism‐inducing covalent association is a plausible consequence of the aging of wine in oak‐made barrels. Cheers!
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