Analysis, potency and occurrence of (Z)-6-dodeceno-γ-lactone in white wine
Date
2018
Authors
Siebert, T.E.
Barker, A.
Barter, S.R.
de Barros Lopes, M.A.
Herderich, M.J.
Francis, I.L.
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Advisors
Journal Title
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Type:
Journal article
Citation
Food Chemistry, 2018; 256:85-90
Statement of Responsibility
Tracey E.Siebert, Alice Barker, Sheridan R.Barter, Miguel A.de Barros Lopes, Markus J.Herderich, I. Leigh Francis
Conference Name
Abstract
(Z)-6-Dodeceno-γ-lactone is a potent aroma compound that has been little studied and its prevalence in wines is unknown. An efficient stable isotope dilution assay was developed using a simple, direct immersion solid-phase microextraction and gas chromatography-tandem mass spectrometry method suitable for routine use with a low ng/L limit of quantitation. Using this method, 99 out of 104 young white wines analysed were found to contain detectable (Z)-6-dodeceno-γ-lactone. The highest concentrations were found in Riesling and Viognier wines. (Z)-6-Dodeceno-γ-lactone was found to have an aroma detection threshold of 700 ng/L in a neutral white wine. This study established that (Z)-6-dodeceno-γ-lactone is widely present in Australia's most popular white wine varieties, but generally at concentrations below its aroma detection threshold.
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Data source: Supplementary data, https://www.sciencedirect.com/science/article/pii/S0308814618303315?via%3Dihub#s0105
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© 2018 Elsevier Ltd. All rights reserved.