Understanding sweetness of dry wines: First evidence of astilbin isomers in red wines and quantitation in a one-century range of vintages
| hal.structure.identifier | Unité de Recherche Oenologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | FAYAD, Syntia | |
| hal.structure.identifier | Unité de Recherche Oenologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | LE SCANFF, Marie | |
| hal.structure.identifier | Unité de Recherche Oenologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | WAFFO TEGUO, Pierre | |
| hal.structure.identifier | Unité de Recherche Oenologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | MARCHAL, Axel | |
| dc.date.accessioned | 2021-12-08T15:15:22Z | |
| dc.date.available | 2021-12-08T15:15:22Z | |
| dc.date.issued | 2021 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/124060 | |
| dc.description.abstractEn | Astilbin (2R, 3R) was recently reported to contribute to wine sweetness. As its aglycon contains two stereogenic centers, three other stereoisomers may be present: neoisoastilbin (2S, 3R), isoastilbin (2R, 3S), and neoastilbin (2S, 3S). This work aimed at assaying their presence for the first time in wines as well as their taste properties. The isomers were synthesized from astilbin and purified by semi-preparative HPLC. With the four stereoisomers, a sweet taste was perceived whose intensity varied with the configuration. Their content was assayed by developing a UHPLC-Q-Exactive method. The method was applied to screen astilbin and isomers in various wines, especially in different vintages from the same estate. While young wines contained higher concentrations of astilbin than the old ones, the concentrations of the other isomers, mainly neoastilbin, were higher in the old wines, suggesting their formation over time. | |
| dc.language.iso | EN | en_US |
| dc.subject.en | Sweetness | |
| dc.subject.en | Method validation | |
| dc.subject.en | Taste | |
| dc.subject.en | Isomers | |
| dc.subject.en | MS/MS | |
| dc.subject.en | Q-Exactive | |
| dc.title.en | Understanding sweetness of dry wines: First evidence of astilbin isomers in red wines and quantitation in a one-century range of vintages | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.foodchem.2021.129293 | en_US |
| dc.subject.hal | Sciences du Vivant [q-bio]/Biologie végétale | en_US |
| bordeaux.journal | Food Chemistry | en_US |
| bordeaux.volume | 352 | en_US |
| bordeaux.hal.laboratories | Unité de Recherche Oenologie - EA 4577 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | Bordeaux INP | en_US |
| bordeaux.institution | INRAE | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| hal.export | false | |
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