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Molecules 2015, 20(5), 7974-7989; doi:10.3390/molecules20057974

Investigating the Effect of Cold Soak Duration on Phenolic Extraction during Cabernet Sauvignon Fermentation

1
Faculty of Biotechnology, Assumption University, Bangkok 10240, Thailand
2
Department of Viticulture and Enology, University of California, Davis, CA 95616-8749, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Susan Ebeler and Helene Hopfer
Received: 16 March 2015 / Revised: 27 April 2015 / Accepted: 29 April 2015 / Published: 4 May 2015
(This article belongs to the Collection Wine Chemistry)
View Full-Text   |   Download PDF [1228 KB, uploaded 4 May 2015]   |  

Abstract

The impact of increasing cold soak (CS) duration (0, 1, 4, 7, and 10 days at 10 °C) on the extraction of phenolic compounds during the CS period and primary fermentation as well as the final composition of Cabernet Sauvignon wine was investigated. The results showed that CS duration had no effect on hydroxycinnamate and flavonol extractions. Greater amounts of gallic acid, (+)-catechin, (−)-epicatechin, and total tannins were extracted with increasing CS duration, with differences maintained during bottle aging. Anthocyanin extraction and color density increased with longer periods of CS; however, by the end of primary fermentation, as well as three months’ bottle aging, there were no significant differences due to CS duration. The wines made with seven and 10 days of CS had higher seed tannin contributions and total tannin compared to the non-CS wine, which could potentially result in increased astringency. View Full-Text
Keywords: cold soak; phenolics; extraction; wine; Cabernet Sauvignon cold soak; phenolics; extraction; wine; Cabernet Sauvignon
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Panprivech, S.; Lerno, L.A.; Brenneman, C.A.; Block, D.E.; Oberholster, A. Investigating the Effect of Cold Soak Duration on Phenolic Extraction during Cabernet Sauvignon Fermentation. Molecules 2015, 20, 7974-7989.

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