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- W1967708561 abstract "β-Damascenone, a C-13 norisoprenoid compound, is usually presented as an impact odorant in red wines. Its direct contribution to their aroma was investigated. Both free β-damascenone and β-damascenone precursors were isolated from various French red wines and then analyzed by gas chromatography−mass spectrometry, revealing concentrations in the vicinity of 1 and 2 μg/L for free compounds and both forms, respectively. Gas chromatography−olfactometry analyses were also performed on dilutions of both red wine extracts and pure β-damascenone. The very low detection threshold in olfactometry for this compound explains why it is found at the highest dilution factor in aroma extract dilution analysis methods. Moreover, determination of β-damascenone's odor thresholds confirmed the huge importance of the matrix: β-Damascenone is characterized by a very low perception threshold in hydroalcoholic solution as compared to red wine, where it is over 1000-fold higher. In hydroalcoholic solution, β-damascenone enhanced fruity notes of ethyl cinnamate and caproate and masked the herbaceous aroma of IBMP. Globally, these results suggested that β-damascenone has more an indirect than a direct impact on red wine aroma. Keywords: Red wine; β-damascenone; odor threshold; matrix; aromatic interactions" @default.
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- W1967708561 date "2007-04-21" @default.
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- W1967708561 title "Which Impact for β-Damascenone on Red Wines Aroma?" @default.
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- W1967708561 doi "https://doi.org/10.1021/jf070120r" @default.
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