代谢学分析显示,在莉花茶的气味过程中,挥发性和非挥发性代谢物的动态变化
Mengya Gu1, Yuhang Zhang1, Qiuhang Weng2
1College of Horticulture, Fujian Agriculture and Forestry University/Key Laboratory of Tea Science in Universities of Fujian Province, Fuzhou 350002, China.
Food chemistry: X
|June 20, 2025
概括
这项研究揭示了关键的芳香化合物和最佳的嗅觉时间.
科学领域:
- 食品化学 食品化学
- 植物代谢学 植物代谢学
- 感官科学 感官科学
背景情况:
- 莉花茶的生产包括用莉花花来香味新鲜的茶叶.
- 了解香味过程中的化学变化对于质量控制至关重要.
- 不同的莉花茶品种,如"圆叶" (RT) 和双叶 (DT),可能表现出不同的代谢特征.
研究的目的:
- 为了研究"圆叶"莉花茶 (RT) 在气味过程中的非挥发性和挥发性化合物的动态变化.
- 为了比较RT的代谢概况与双叶莉花茶 (DT).
- 识别影响RT风味和芳香的关键化合物,并确定最佳的气味阶段.
主要方法:
- 针对非挥发性化合物的向代谢.
- 头部空间-固相微提取-气相色谱-质谱 (HS-SPME-GC-MS) 对于挥发性化合物.
- 对味道活性值和芳香化合物和度的分析.
主要成果:
- 氨基酸 (Asp,Thea,Glu) 对RT的风味特征有很大的贡献.
- 鉴定到的关键芳香化合物包括甲基炭酸盐,乙酸,林纳醇,醇,甲基酸盐和甲基酸盐.
- (E) -3-烯酸乙酸, (E) -β-烯和乙化物增强了RT的优雅和新鲜度.
- 在第四次嗅觉过程 (S4) 中观察到RT中的芳香化合物和.
- 在S4中实现了RT的最佳质量,而在S5中实现了DT的最佳质量.
结论:
- 这项研究确定了"圆叶"莉花茶中的关键风味和芳香化合物.
- 第四个嗅觉过程 (S4) 代表了"圆叶"莉花茶质量的最佳阶段.
- 这些发现为优化RT生产和应用提供了科学基础.
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