皮分离 (库贝萨方法) 影响酒的老化化学
Stefan A Pieczonka1,2, Lukas Brass3, Florian Lehnhardt3
1Analytical Food Chemistry, TUM School of Life Sciences, Technical University of Munich, 85354 Freising, Germany.
Journal of agricultural and food chemistry
|September 2, 2024
概括
在酒前去除皮,库贝萨方法,提高了酒的风味稳定性. 这项研究使用先进的质谱法识别了500多种由皮分离抑制的化合物,为酒老化提供了新的见解.
科学领域:
- 造科学 造科学
- 分析化学 分析化学
- 食品化学 食品化学
背景情况:
- 库贝萨方法,即在粉碎前分离皮,与提高酒质量有关,但缺乏经验验证.
- 传统的造分析方法无法充分评估皮分离对酒成分的影响.
研究的目的:
- 实证地研究库贝萨方法对酒老化化学的影响.
- 为了识别酒中的特定分子变化,而这种变化是造过程中皮分离造成的.
主要方法:
- 使用超高分辨率质谱仪 (FT-ICR-MS) 进行详细的酒分子分析.
- 在衰老实验中使用机器学习算法来识别与衰老相关的化合物.
- 使用的飞行时间质谱 (ToF-MS) 与染色学相结合,用于进一步的组成分析.
主要成果:
- 鉴定了500多种与衰老相关的化合物,这些化合物被皮分离所抑制.
- 揭示了皮分离和不分离的酒之间的复杂分子差异.
- 证实了粉碎所引入的含硫脂化合物的存在.
结论:
- 皮皮分离显著改变酒的成分,特别是在老化途径方面.
- 库贝萨方法证明了阻断保护效应,得到了详细的分子证据的支持.
- 先进的分析技术为造过程对酒质量的影响提供了关键的见解.
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