广泛针对的代谢学分析揭示了在xiaoqu baijiu发酵过程中挥发性代谢物的动态变化
Zhenbing Ma1,2,3, Haibo Lan1,2, Dong Zhao3
1College of Biological Engineering, Sichuan University of Science & Engineering, Yibin 643000, Sichuan, China.
Food chemistry: X
|February 3, 2025
概括
这项研究跟踪了中国白生产期间的挥发性代谢物. 蒸显著改变了这些化合物,为优化白风味和质量提供了洞察力.
科学领域:
- 食品科学 食品科学 食品科学
- 代谢学 代谢学 代谢学
- 发酵技术的发酵技术
背景情况:
- 挥发性代谢物显著影响baijiu的风味,这是通过固态发酵和蒸生产的传统中国烈酒.
- 这些挥发性代谢物在整个白生产过程中的精确转化途径尚不清楚.
研究的目的:
- 综合分析在xiāoqu baijiu发酵过程中挥发性代谢物的动态变化.
- 为了确定影响白的最终风味特征的关键阶段和代谢物类.
主要方法:
- 采用超高性能液态染色体-并联质谱 (UPLC-MS/MS) 和气体染色体-并联质谱 (GC-MS/MS) 进行广泛向的代谢.
- 分析了不同阶段的代谢物概况:浸泡,糖化,发酵,和蒸.
主要成果:
- 在xiaoqu baijiu发酵过程中,在16个子类中确定了668种挥发性代谢物.
- 观察到重要的代谢物变化,蒸阶段显示出最明显的变化.
- 确定了转换强度的顺序:蒸 > 浸泡 > 糖化 > 发酵 > 蒸.
- 在蒸阶段描述了570种不同的挥发性代谢物,其中 Ester, terpenoid 和碳化合物尤为突出.
结论:
- 这项研究阐明了白生产过程中挥发性代谢物的转化关系.
- 蒸被认为是挥发性代谢物转化的一个关键阶段,显著影响了味道.
- 这些发现为指导小川白发酵提供了科学基础,以达到所需的质量和特定的风味成分.
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