Unravelling wine volatile evolution during Shiraz grape ripening by untargeted HS-SPME-GC × GC-TOFMS

Katja Šuklje, Silvia Carlin, Jan Stanstrup, Guillaume Antalick, John W. Blackman, Campbell Meeks, Alain Deloire, Leigh M. Schmidtke, Urska Vrhovsek

Research output: Contribution to journalArticle

Abstract

The influence of grape maturity on wine volatome was investigated using HS-SPME-GC × GC-TOFMS. Shiraz wines were made from grapes harvested from four different vineyards from two berry maturity levels. A total of 1276 putative compounds were detected in at least one of the wine samples and 175 showed significant trends related to grape maturity. The first two dimensions of the Principal component analysis accounted for 57% of the variation and separated the samples according to the harvest date. Wines from the first harvest date were characterised by an abundance of lipoxygenase derived compounds, norisoprenoids and sulfur-containing compounds whereas a significant increase in some acetate esters was observed in wines produced from the more mature grapes. This study demonstrated a common evolution of grape volatiles for Shiraz inside the same mesoclimate. During the late ripening stage of the grape, a direct nexus between sugar concentration and wine volatile evolution was not observed.

Original languageEnglish
Pages (from-to)753-765
Number of pages13
JournalFood Chemistry
Volume277
DOIs
Publication statusPublished - 30 Mar 2019

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Wine
Vitis
wines
grapes
ripening
harvest date
Norisoprenoids
Sulfur Compounds
norisoprenoids
Lipoxygenase
lipoxygenase
Principal Component Analysis
Sulfur
vineyards
Sugars
Principal component analysis
small fruits
4-sulfophenylmethallyl ether
Fruit
sulfur

Cite this

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abstract = "The influence of grape maturity on wine volatome was investigated using HS-SPME-GC × GC-TOFMS. Shiraz wines were made from grapes harvested from four different vineyards from two berry maturity levels. A total of 1276 putative compounds were detected in at least one of the wine samples and 175 showed significant trends related to grape maturity. The first two dimensions of the Principal component analysis accounted for 57{\%} of the variation and separated the samples according to the harvest date. Wines from the first harvest date were characterised by an abundance of lipoxygenase derived compounds, norisoprenoids and sulfur-containing compounds whereas a significant increase in some acetate esters was observed in wines produced from the more mature grapes. This study demonstrated a common evolution of grape volatiles for Shiraz inside the same mesoclimate. During the late ripening stage of the grape, a direct nexus between sugar concentration and wine volatile evolution was not observed.",
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Unravelling wine volatile evolution during Shiraz grape ripening by untargeted HS-SPME-GC × GC-TOFMS. / Šuklje, Katja; Carlin, Silvia; Stanstrup, Jan; Antalick, Guillaume; Blackman, John W.; Meeks, Campbell; Deloire, Alain; Schmidtke, Leigh M.; Vrhovsek, Urska.

In: Food Chemistry, Vol. 277, 30.03.2019, p. 753-765.

Research output: Contribution to journalArticle

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AU - Šuklje, Katja

AU - Carlin, Silvia

AU - Stanstrup, Jan

AU - Antalick, Guillaume

AU - Blackman, John W.

AU - Meeks, Campbell

AU - Deloire, Alain

AU - Schmidtke, Leigh M.

AU - Vrhovsek, Urska

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