Influence of supplementation with different oenological tannins on malvidin-3-monoglucoside copigmentation

Autor: Gombau Jordi, Vignault Adeline, Pascual Olga, Canals Joan Miquel, Teissedre Pierre-Louis, Zamora Fernando
Jazyk: English<br />French
Rok vydání: 2016
Předmět:
Zdroj: BIO Web of Conferences, Vol 7, p 02033 (2016)
Druh dokumentu: article
ISSN: 2117-4458
DOI: 10.1051/bioconf/20160702033
Popis: The effect as copigment of (-)-epicatechin and five different oenological tannins has been measured in a model wine solution containing malvidine-3-monoglucoside. The results show that all oenological tannins exert a positive effect on the color of the malvidine solution, increasing the global absorptivity spectrum and changing the Cielab coordinates. Specifically, supplementation with oenological tannins increase a* and b* and decreases L*. Overall, the effect as copigments of all oenological tannins was higher than that of (−)-epicatechin.
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