SPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, France.
SPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, France; INRAE, PROBE Research Infrastructure, PFP Polyphenols Analytical Facility, Montpellier, France.
Food Chem. 2025 Feb 1;464(Pt 1):141517. doi: 10.1016/j.foodchem.2024.141517. Epub 2024 Oct 5.
An experiment involving the ageing of Syrah red wine was conducted over a period of 24 months, during which the impact of four different micro-agglomerated corks was examined. An untargeted UHPLC-Q-Orbitrap metabolomics analysis was performed and provided valuable insights into the chemical dynamics of red wine evolution. Forty-three specific discriminating compounds were found for non-aged wines, including various CHO and CHON-types molecules. Thirteen specific discriminating compounds were found for 24-months-aged wines including CHO, CHNOS and CHOS compounds. Among them, sulfonated flavanols and pyranoanthocyanins were identified and emerged as key molecular markers of wine ageing. This metabolomics analysis also enabled us to identify specific chemical markers of cork oxygen transfer rate (OTR) influence. Analysis revealed specific molecules linked to corks with low and high OTR such as anthocyanins and proanthocyanins respectively. This research enhances our comprehension of intricate chemical changes during red wine ageing and underscores the potential impact of cork OTR on wine composition.
对西拉红葡萄酒进行了为期 24 个月的老化实验，在此期间研究了四种不同微团聚软木塞的影响。进行了非靶向 UHPLC-Q-Orbitrap 代谢组学分析，为红葡萄酒演化的化学动力学提供了有价值的见解。发现非陈酿葡萄酒有 43 种特定的区分化合物，包括各种 CHO 和 CHON 型分子。24 个月陈酿葡萄酒中有 13 种特定的区分化合物，包括 CHO、CHNOS 和 CHOS 化合物。其中，鉴定出磺化黄烷醇和吡喃花青素，并成为葡萄酒陈酿的关键分子标志物。该代谢组学分析还使我们能够识别与软木塞氧气转移率 (OTR) 影响相关的特定化学标志物。分析表明，与低 OTR 和高 OTR 的软木塞有关的特定分子分别为花青素和原花青素。该研究增进了我们对红葡萄酒陈酿过程中复杂化学变化的理解，并强调了软木塞 OTR 对葡萄酒成分的潜在影响。
