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- W2912398668 abstract "Eight new triterpenoids (1-8), the known genin (9), and two known functionalized triterpenoids (10 and 11) were isolated from a Quercus petraea heartwood extract. The structures of the new compounds were unequivocally elucidated using HRESIMS and 1D/2D NMR experiments. Sensory analyses were performed in a non-oaked wine on the pure compounds 1-11. Except compounds 1 and 11, all molecules exhibited a sweet taste at 5 mg/L that was particularly intense for compounds 3 and 9. Using LC-HRMS, compounds 1-11 were observed in an oak wood extract and in oaked red wine and cognac. They were also semiquantified in several samples of sessile ( Q. petraea) and pedunculate ( Q. robur) oak wood extract. All compounds were found in quantities significantly higher in sessile than in pedunculate oak wood. These results support the hypothesis of their contribution to the increase in sweetness during oak aging and show that they can be used as chemical markers to identify the species of oak used for cooperage." @default.
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- W2912398668 date "2019-01-28" @default.
- W2912398668 modified "2023-10-16" @default.
- W2912398668 title "Triterpenoids from <i>Quercus petraea</i>: Identification in Wines and Spirits and Sensory Assessment" @default.
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- W2912398668 doi "https://doi.org/10.1021/acs.jnatprod.8b00682" @default.
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