4.6 Article

Investigation of Different Winemaking Protocols to Mitigate Smoke Taint Character in Wine

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MOLECULES
卷 27, 期 5, 页码 -

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MDPI
DOI: 10.3390/molecules27051732

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wine; volatile phenols; smoke; yeast; oak; fermentation temperature; sensory

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There is an increase in volatile phenols in wine made with smoke-impacted grapes. Mitigation strategies during red wine fermentation have limited impact on the extraction of smoke-taint markers and sensory characteristics.
There is an increase in the levels of volatile phenols in wine made with smoke-impacted grapes. These compounds are present in wood smoke resulting from the pyrolysis (thermal decomposition) of lignin and at high levels give overpowering smoky and ashy characters to a wine. This research aimed to compare all the suggested wine mitigation strategies that evolved from prior research using smoke-impacted grapes under identical winemaking conditions except for the parameter under investigation. Cabernet Sauvignon grapes were received from three areas with varying amounts of smoke exposure in Northern California. Gas chromatography combined with mass spectrometry (GC-MS) and descriptive analyses were performed to correlate the volatile phenol composition to smoke taint characteristics. The winemaking variables investigated were the use of different fermentation yeasts, oak additions, and fermentation temperatures. Among other attributes, smokiness and ashy aftertaste were significantly different among the wines, showing a clear difference between the wines made from smoke-impacted fruit and the control wines made from non-impacted fruit. Findings indicate that mitigation strategies during red wine fermentation have a limited impact on the extraction of smoke-taint markers and the expression of smoke-taint sensory characteristics.

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