Identification of Two New Taste-Active Compounds in Oak Wood: Structural Elucidation of Potential β-Methyl-γ-octalactone Precursors and Quantification in Spirits

Winstel, Delphine; Gammacurta, Marine; Waffo-Téguo, Pierre; Marchal, Axel

doi:10.1021/acs.jafc.4c04799

J. Agric. Food Chem.

2024

DOI: 10.1021/acs.jafc.4c04799

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Identification of Two New Taste-Active Compounds in Oak Wood: Structural Elucidation of Potential β-Methyl-γ-octalactone Precursors and Quantification in Spirits

Delphine Winstel,

Marine Gammacurta,

Pierre Waffo-Téguo

et al.

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Ethanol’s Pharmacodynamic Effect on Odorant Detection in Distilled Spirits Models

Wang,

Cadwallader

2024

Beverages

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Aroma perception in distilled spirits is influenced by both the physicochemical and pharmacodynamic effects of ethanol. This study measured these effects by examining the odor detection threshold (ODT) of various odorants. The physicochemical effect influences how odorants partition into the vapor matrix (headspace), while the pharmacodynamic effect affects the functioning of olfactory receptors cells (ORCs). Both factors contribute to changes in odorant ODTs, though it remains unclear which has a greater influence. Across three exploratory experiments, we demonstrated that ethanol in the vapor matrix suppressed the olfactory detection of key odorants in distilled spirits, with some chemical groups being more affected than others. This suppression effect increased as ethanol concentration rose. Notably, our results showed that ethanol’s pharmacodynamic effect plays the primary role in elevating ODTs in ethanol/water solutions, and this effect intensifies as ethanol concentration in the liquid matrix increases. These findings highlight the significant role of ethanol concentration in the vapor matrix and provide scientific support for practices such as diluting spirits or using specifically shaped glassware to lower ethanol headspace concentration during whiskey nosing (odor evaluation).

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Ethanol’s Pharmacodynamic Effect on Odorant Detection in Distilled Spirits Models

Wang,

Cadwallader

2024

Beverages

View full text Add to dashboard Cite

show abstract

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Identification of Two New Taste-Active Compounds in Oak Wood: Structural Elucidation of Potential β-Methyl-γ-octalactone Precursors and Quantification in Spirits

Cited by 1 publication

References 41 publications

Ethanol’s Pharmacodynamic Effect on Odorant Detection in Distilled Spirits Models

Ethanol’s Pharmacodynamic Effect on Odorant Detection in Distilled Spirits Models

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