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HAL INRAE
Article . 2000
Data sources: HAL INRAE
Sciences des Aliments
Article . 2000 . Peer-reviewed
Data sources: Crossref
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Characterization of aged champagne wine aroma by GC-O and descriptive profile analyses

Authors: Escudero, A.; Charpentier, M.; Etiévant, Patrick;

Characterization of aged champagne wine aroma by GC-O and descriptive profile analyses

Abstract

Le but du travail est de caracteriser l'evolution de l'arome du champagne au cours du vieillissement et de comparer sous ce rapport le vieillissement accelere a 40 °C au vieillissement normal. Les methodes mises en oeuvre a cet effet sont l'analyse sensorielle, et les techniques GC-O et GC-MS. La representativite des extraits a ete etudiee au prealable par tests triangulaires et tests de similarite. Les profils descriptifs ont ete etablis par un panel d'experts sur des echantillons jeunes et vieillis. L'intensite des notes florale et fruitee diminue au cours du vieillissement, celles des notes boisee et d'evolution augmentent. On observe cependant des differences sensorielles entre les produits des deux types de vieillissement. La technique de GC-O montre que le vieillissement normal met en jeu trois processus : la reaction de Strecker qui produit du 3-(methylthio)-1-propanal et furaneol d'ethyle a partir des acides amines, la formation d'eugenol, et l'oxydation de composes d'arome tres sensibles tels que le furaneol. En revanche, ces trois reactions sont moins importantes dans le vieillissement accelere, qui fait intervenir surtout quatre autres reactions : la degradation d'acides gras insatures pour produire le cis-3-hexenol, la formation de 2, 3-butanodione et de guaiacol, et le metabolisme de la phenylalanine en benzaldehyde. Ainsi, bien qu'un certain nombre de reactions se retrouvent identiques dans les deux types de vieillissement, le chauffage du champagne ne conduit pas a des produits proches de ceux obtenus par vieillissement normal.

Country
France
Keywords

[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, CHAMPAGNE ET VIN MOUSSEUX, 330, VIELLISSEMENT, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
29
Top 10%
Top 10%
Top 10%
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