The effects of regions and the wine aging periods on the condensed tannin profiles and the astringency perceptions of Cabernet Sauvignon wines

葡萄酒 丹宁 酿造的 原花青素 化学 食品科学 作文(语言) 缩合单宁 葡萄酒颜色 多酚 抗氧化剂 有机化学 生物化学 语言学 哲学
作者
Qian Tu,Shuzhen Liu,Yuyu Li,Lin Zhang,Zhaoxiang Wang,Chunlong Yuan
出处
期刊:Food Chemistry: X [Elsevier BV]
卷期号:15: 100409-100409
标识
DOI:10.1016/j.fochx.2022.100409
摘要

• Thirty-two commercial red wines of Cabernet Sauvignon produced in five continuous vintages (2015–2019) and collected from four production regions were statistically different for the analyzed condensed tannin profiles. • Cabernet Sauvignon wines from four regions were rich in the (–)-epicatechin as the extension subunit. • Condensed tannin profiles could be used to distinguish some of the production region, but the different vintage samples were not well differentiated. • A negative correlation of ageing periods and condensed tannin concentration of Cabernet Sauvignon wines was observed. This study sought to determine the effects of wine-producing regions and aging periods on the astringency and chemistry of condensed tannins of Cabernet Sauvignon dry red wines. A wine quality study was performed with 5 vintages of 32 Cabernet Sauvignon wines produced in four Chinese wine-producing regions, Hebei (H), Xinjiang (X), Inner Mongolia (NM), and Ningxia (NX). Condensed tannin profiles were assessed by high-performance liquid chromatography coupled with a diode array detector (HPLC-DAD). The (–)-epicatechin as the terminal subunit (tEC) is the major differential component between regions. Correlation analysis revealed that condensed tannin concentration and composition significantly affected the sensory evaluation of astringency. Condensed tannin concentrations were significantly and negatively correlated with wine aging periods. However, no significant correlation was found between aging periods and condensed tannin subunits (as mole%) composition. The current findings enhance the understanding of condensed tannins' chemical and astringency characteristics in Cabernet Sauvignon wines.
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