Impact of the Acetaldehyde-Mediated Condensation on the Phenolic Composition and Antioxidant Activity of Vitis vinifera L. Cv. Merlot Wine.
Impact of the Acetaldehyde-Mediated Condensation on the Phenolic Composition and Antioxidant Activity of Vitis vinifera L. Cv. Merlot Wine.
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乙醛介导的缩合反应对葡萄酚类成分和抗氧化活性的影响
DOI：
10.3390/molecules27092608
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发表时间：
2022-04-19
期刊：
影响因子：
--
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中科院分区：
文献类型：
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Acetaldehyde is a critical reactant on modifying the phenolic profile during red wine aging, suggesting that the acetaldehyde-mediated condensation can be responsible for the variation of antioxidant activity during the aging of this beverage. The present study employs exogenous acetaldehyde at six levels of treatment (7.86 ± 0.10–259.02 ± 4.95 mg/L) before the bottle aging of Merlot wines to encourage phenolic modification. Acetaldehyde and antioxidant activity of wine were evaluated at 0, 15, 30, 45, 60 and 75 days of storage, while monomeric and polymeric phenolics were analyzed at 0, 30 and 75 days of storage. The loss of acetaldehyde was fitted to a first-order reaction model, the rate constant (k) demonstrated that different chemical reaction happened in wines containing a different initial acetaldehyde. The disappearance of monomeric phenolics and the formation of polymeric phenolics induced by acetaldehyde could be divided into two phases, the antioxidant activity of wine did not alter significantly in the first phase, although most monomeric phenolics vanished, but the second phase would dramatically reduce the antioxidant activity of wine. Furthermore, a higher level of acetaldehyde could shorten the reaction time of the first phase. These results indicate that careful vinification handling aiming at controlling the acetaldehyde allows one to maintain prolonged biological activity during wine aging.
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DOI：
10.3390/molecules23051066
发表时间：
2018-05-03
期刊：
Molecules (Basel, Switzerland)
影响因子：
--
作者：
Li L;Zhang M;Zhang S;Cui Y;Sun B
通讯作者：
Sun B
影响因子：
64.8
作者：
Corder, R.;Mullen, W.;Crozier, A.
通讯作者：
Crozier, A.
影响因子：
8.8
作者：
Alanon, M. E.;Castro-Vazquez, L.;Perez-Coello, M. S.
通讯作者：
Perez-Coello, M. S.
影响因子：
5.6
作者：
Lingua, Mariana S.;Fabani, Maria P.;Baroni, Maria V.
通讯作者：
Baroni, Maria V.
影响因子：
1.9
作者：
Gambuti, Angelita;Han, Guomin;Waterhouse, Andrew L.
通讯作者：
Waterhouse, Andrew L.