In vivo antioxidant activity of grape, pomace and wine from three red varieties grown in Argentina: Its relationship to phenolic profile
In vivo antioxidant activity of grape, pomace and wine from three red varieties grown in Argentina: Its relationship to phenolic profile
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DOI：
10.1016/j.jff.2015.10.034
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发表时间：
2016-01-01
影响因子：
5.6
通讯作者：
Baroni, Maria V.
中科院分区：
文献类型：
--
作者：
Lingua, Mariana S.;Fabani, Maria P.;Baroni, Maria V.
研究了在阿根廷种植的三个红葡萄品种的酿酒过程中天然抗氧化剂的体内抗氧化能力（AC）及其与酚类成分的关系。葡萄、葡萄酒和葡萄渣中的多酚能够拯救酵母细胞免受氧化应激，可能是通过诱导抗氧化酶，如谷胱甘肽还原酶（GR）和谷胱甘肽过氧化物酶（GPx）。典型相关分析（CCA）和多元回归分析（MRA）表明，观察到的AC与酚类配置文件高度相关。葡萄样品中表现出最高的活性样品类型，并根据MRA山萘酚-3-葡萄糖苷和阿魏酸作出积极贡献，而没食子酸乙酯作出负面贡献AC的葡萄酒和果渣。从品种上看，西拉是活性最高的品种，这是由于其花色苷含量较高，而花色苷是与生物活性密切相关的化合物。(C)2015爱思唯尔有限公司版权所有。
The in vivo antioxidant capacity (AC) of natural antioxidants involved in the winemaking of three red grape varieties grown in Argentina and its association with the phenolic composition were studied. Polyphenols from grape, wine and pomace were capable of rescuing yeast cells from oxidative stress, probably by the induction of antioxidant enzymes, such as glutathione reductase (GR) and glutathione peroxidase (GPx). Observed AC was highly correlated with phenolic profiles, as shown by canonical correlation analysis (CCA) and multiple regression analysis (MRA). Grape samples showed the highest activity among sample types, and according to MRA kaempferol-3-glucoside and fertaric acid contributed positively, whereas ethyl gallate contributed negatively to AC of wines and pomaces. With respect to varieties, Syrah was the one with the highest activity, owing to higher contents of anthocyanins, compounds highly related to bioactivity. (C) 2015 Elsevier Ltd. All rights reserved.