Pre-fermentation approaches to producing lower alcohol wines from Cabernet Sauvignon and Shiraz: Implications for wine quality based on chemical and sensory analysis

Olaf J. Schelezki, Guillaume Antalick, Katja Suklje, David W. Jeffery

Research output: Contribution to journalArticle

Abstract

Pre-fermentative juice substitution with water or early harvest wine has the potential to produce lower alcohol wines without critically modifying colour or tannin properties and only marginally changing volatile and sensory profiles. Whether this approach is suited to producing lower alcohol wines in the absence of excessive grape ripeness remained to be determined. The current study extends on pre-fermentative approaches to alcohol management under milder grape ripening conditions and builds on an existing study with McLaren Vale Cabernet Sauvignon fruit, allowing for a direct comparison under two distinct vintage conditions. Given its importance to Australia, Shiraz was also included and underwent the same consecutive harvest and juice substitution treatments. Cultivar-dependent implications on wine chemical properties were apparent and declines in wine colour and tannin were particularly evident in Shiraz wines, although impacts on overall wine quality and sensory parameters were minor when adjusting musts within the limit of 13.5 °Baumé.
Original languageEnglish
Article number125698
Pages (from-to)1-10
Number of pages10
JournalFood Chemistry
Volume309
Early online date21 Oct 2019
DOIs
Publication statusE-pub ahead of print - 21 Oct 2019

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wine quality
Wine
chemical analysis
Fermentation
sensory evaluation
wines
alcohols
fermentation
Alcohols
Chemical analysis
Tannins
Vitis
tannins
juices
grapes
Substitution reactions
Color
color
Fruits
Sensory analysis

Cite this

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title = "Pre-fermentation approaches to producing lower alcohol wines from Cabernet Sauvignon and Shiraz: Implications for wine quality based on chemical and sensory analysis",
abstract = "Pre-fermentative juice substitution with water or early harvest wine has the potential to produce lower alcohol wines without critically modifying colour or tannin properties and only marginally changing volatile and sensory profiles. Whether this approach is suited to producing lower alcohol wines in the absence of excessive grape ripeness remained to be determined. The current study extends on pre-fermentative approaches to alcohol management under milder grape ripening conditions and builds on an existing study with McLaren Vale Cabernet Sauvignon fruit, allowing for a direct comparison under two distinct vintage conditions. Given its importance to Australia, Shiraz was also included and underwent the same consecutive harvest and juice substitution treatments. Cultivar-dependent implications on wine chemical properties were apparent and declines in wine colour and tannin were particularly evident in Shiraz wines, although impacts on overall wine quality and sensory parameters were minor when adjusting musts within the limit of 13.5 °Baum{\'e}.",
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AU - Jeffery, David W.

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KW - Alcohol managment

KW - water addition

KW - wine colour

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KW - volatiles

KW - wine aroma

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