期刊
AUSTRALIAN JOURNAL OF GRAPE AND WINE RESEARCH
卷 24, 期 1, 页码 38-50出版社
WILEY
DOI: 10.1111/ajgw.12294
关键词
Chardonnay; chemical analysis; consumer preference; sensory analysis; varietal thiols
资金
- Australian grapegrowers and winemakers through Wine Australia
- Australian Government
Background and AimsPolyfunctional thiols are key aroma compounds in many Sauvignon Blanc wines, but their role in other white cultivars is not clear. Methods and ResultsA survey of 106 commercial Australian Chardonnay wines found a high concentration of 3-mercaptohexan-1-ol, 3-mercaptohexyl acetate, benzyl mercaptan and 4-mercapto-4-methylpentan-2-one, with nearly all wines having a concentration of all compounds well above their reported sensory detection threshold, and some having a concentration comparable to that found in highly fruity Sauvignon Blanc wines. Wines were made on a research scale from a set of Chardonnay juices sourced from 16 vineyards across Australia. Sensory descriptive analysis combined with quantitative aroma volatile data revealed that several aroma and flavour attributes were related to the concentration of the thiols. ConclusionsThis study provided evidence that substantial flavour in Chardonnay can be contributed by these thiols. Additionally, consumer acceptance data showed that wines with a higher thiol concentration were liked by most consumers. Significance of the StudyThis study revealed the importance of polyfunctional thiols in Chardonnay wine.
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