在Baijiu,通过分子蒸与分子感觉科学相结合,分离和描述甜味化合物
Fei He1, Peng Xiao2, Shiqi Yang1
1School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Key Laboratory of Geriatric Nutrition and Health, Beijing Technology and Business University, Ministry of Education, China; Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, China.
研究人员通过先进的分子蒸和感官科学在Baijiu中确定了关键的甜味化合物. 这项分析揭示了特定的和酒精作为Baijiu的主要贡献者.
科学领域:
- 食品化学 食品化学
- 感官科学 感官科学
- 分析化学 分析化学
背景情况:
- 甜味是Baijiu的重要感官属性,但其关键贡献者仍未得到充分研究.
- 传统的风味分析方法不足以识别像Baijiu这样复杂饮料中的特定甜味化合物.
研究的目的:
- 开发和应用一种新的分析方法来识别Baijiu的主要甜味化合物.
- 为了在科学上阐明Baijiu的甜味的分子基础.
主要方法:
- 采用多阶段分子蒸技术进行样品制备.
- 使用气色谱-质谱法 (GC-MS) 与味道稀释分析 (TDA) 结合用于化合物识别.
- 通过味道重组和遗漏实验确定了已识别的化合物的贡献.
主要成果:
- 样品 (93.8%~98.3%) 和化合物 (81.6%~118.3%) 的回收率高.
- 确定了15种具有显著味道影响的化合物 (味道稀释系数 (TD) ≥64).
- 量化10种主要甜味化合物,味觉活性值 (TAV) ≥1.
- 证实了乙烯六酸,乙烯七酸,乙烯八酸,乙烯二甲基丁酸,1-butanol,乙醇和乙烯酸是Baijiu甜味的关键贡献者.
结论:
- 开发的分子蒸和感官分析方法有效地识别了Baijiu的关键甜味化合物.
- 特定的和酒精被证实是Baijiu甜味的主要驱动因素,为味道理解和操纵提供了科学基础.
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