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Selective Wine Aroma Enhancement through Enzyme Hydrolysis of Glycosidic Precursors

Authors: Rodríguez Nogales, José Manuel; Fernández Fernández, Encarnación; Ruipérez Prádanos, Violeta; Vila Crespo, Josefina María;

Selective Wine Aroma Enhancement through Enzyme Hydrolysis of Glycosidic Precursors

Abstract

Selective enhancement of wine aroma was achieved using a broad spectrum of exogenous glycosidases. Eight different enzyme preparations were added to Verdejo wine, resulting in an increase in the levels of varietal volatile compounds compared to the control wine after 15 days of treatment. The enzyme preparations studied were robust under winemaking conditions (sulfur dioxide, reducing sugars, and alcohol content), and no inhibition of β-glucosidase activity was observed. Significant differences were detected in four individual terpenes (α-terpineol, terpinen-4-ol, α-pinene, and citronellal) and benzyl alcohol in all the treated wines compared to the control wine, contributing to the final wine to varying degrees. In addition, a significant increase in the other aromatic compounds was observed, which showed different patterns depending on the enzyme preparation that was tested. The principal component analysis of the data revealed the possibility of modulating the different aromatic profiles of the final wines depending on the enzyme preparation used. Taking these results into account, enhancement of the floral, balsamic, and/or fruity notes of wines is possible by using a suitable commercial enzyme preparation.

Country
Spain
Related Organizations
Keywords

Glycoside Hydrolases, 3309 Tecnología de Los Alimentos, white wine, glycosidases, Organic chemistry, White wine, Wine, Article, Food science, Cardiac Glycosides, QD241-441, Wine and wine making, Glycosides, Glycosidases, Aroma, Vinos blancos, Terpenes, Hydrolysis, varietal aroma, Terpenos, 3102 Ingeniería Agrícola, Vinos y vinificación - Análisis, Verdejo (Vino), aroma, 3309.29 Vino, Odorants, terpenes

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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!
9
Top 10%
Average
Top 10%
Green
gold