Changes in volatile composition and sensory attributes of wines during alcohol content reduction

Rocco Longo, John W. Blackman, Peter J. Torley, Suzy Y. Rogiers, Leigh M. Schmidtke

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A desirable sensory profile is a major consumer driver for wine acceptability and should be considered during the production of reduced-alcohol wines. Although various viticultural practices and microbiological approaches show promising results, separation technologies such as membrane filtration, in particular reverse osmosis and evaporative perstraction, in addition to vacuum distillation, represent the most common commercial methods used to produce reduced-alcohol wine. However, ethanol removal from wine can result in a significant loss of volatile compounds such as esters (ethyl octanoate, ethyl acetate, isoamyl acetate) that contribute positively to the overall perceived aroma. These losses can potentially reduce the acceptability of the wine to consumers and decrease their willingness to purchase wines that have had their alcohol level reduced. The change in aroma as a result of the ethanol removal processes is influenced by a number of factors: the type of alcohol reduction process; the chemical-physical properties (volatility, hydrophobicity, steric hindrance) of the aroma compounds; the retention properties of the wine non-volatile matrix; and the ethanol level. This review identifies and summarises possible deleterious influences of the dealcoholisation process and describes best practice strategies to maintain the original wine composition. © 2016 Society of Chemical Industry.

Original languageEnglish
Pages (from-to)8-16
Number of pages9
JournalJournal of the Science of Food and Agriculture
Volume97
Issue number1
Early online dateMay 2016
DOIs
Publication statusPublished - 15 Jan 2017

Fingerprint Dive into the research topics of 'Changes in volatile composition and sensory attributes of wines during alcohol content reduction'. Together they form a unique fingerprint.

  • Cite this