Survey of the phenolic content and antioxidant properties of wines from five regions of China according to variety and vintage
Survey of the phenolic content and antioxidant properties of wines from five regions of China according to variety and vintage
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DOI：
10.1016/j.lwt.2022.114004
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发表时间：
2022-09-27
影响因子：
6
通讯作者：
Yuan, Chunlong
中科院分区：
文献类型：
--
作者：
Chen, Xiaoyi;Wang, Zhaoxiang;Yuan, Chunlong
葡萄酒酿造是世界范围内重要的农业经济活动，风土的变化产生了独特的葡萄酒，具有不同的酚类特性，揭示了每个地区，品种和年份的特点。我们采用LC-IM-QTOF-MS分析和多元统计分析方法，对2003年至2019年生产的来自5个地区和4个品种的108种中国葡萄酒的酚类成分和抗氧化性能进行了全面分析。结果表明，中国红葡萄酒中可以通过单宁的浓度来追踪赤霞珠、蛇龙珠和梅鹿辄的品种。主成分分析表明，单体酚类的前两个主成分解释了97.95%的方差，并确定了三个回归变量：（+）-儿茶素（CA）、（-）-表儿茶素（EC）和没食子酸（GA）。在不同年份，CA和EC比GA更稳定。聚类热图分析表明，地域来源与葡萄酒抗氧化特性相关的酚类含量显著相关。结果揭示了中国葡萄酒在地域来源、品种和年份方面的异同。
Winemaking is an important agricultural economic activity worldwide, and variation in terroir gives birth to unique wines with different phenolic properties that reveal characteristics of each region, variety and vintage. We have comprehensively analyzed the phenolic components and antioxidant properties of 108 Chinese wines from five regions and four varieties produced from 2003 to 2019 by the LC-IM-QTOF-MS assay and multivariate statistical analysis. The results showed that the varieties of Cabernet Sauvignon, Cabernet Gernischt, and Merlot could be traced in Chinese red wines through the concentration of tannins. PCA showed that the first two principal components of the monomeric phenols explained 97.95% of the variance, and three regression variables were identified: (+)-catechin (CA), (-)-epicatechin (EC), and gallic acid (GA). CA and EC proved to be more stable than GA in different vintages. A cluster heatmap analysis showed that regional origin was significantly correlated with the phenolic content related to the antioxidant properties of the wine. The result reveals the similarities and differences in Chinese wines according to their regional origin, variety, and vintage.