检测在加工过程中杜云毛茶的非挥发性代谢物和味道演变的动态变化
Xiaolu Zhou1, Qian Wang1, Nguyen Huy Hoang1
1State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China.
Food chemistry
|January 21, 2026
概括
杜云毛茶的独特风味来自于特定的加工步骤. 确定了关键的代谢物,揭示了固定和干燥如何创造其新鲜,柔和和甜的味道.
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:
- 杜云毛茶 (DYMJ) 具有独特的"新鲜,柔和,甜美"的风味特征.
- 非挥发性代谢物 (NVM) 和它们在DYMJ风味形成中的作用尚不清楚.
- 了解DYMJ的化学成分对于优化其独特的加工至关重要.
研究的目的:
- 在加工过程中在杜云毛茶中识别非挥发性代谢物 (NVM).
- 阐明影响NVM转换和风味的关键处理阶段.
- 为了将特定的NVM与像umami,甜味和苦味这样的感官属性相关联.
主要方法:
- 在DYMJ处理过程中,广泛针对的代谢学被用来识别3024个NVM.
- 感官评估和电子舌头分析评估了口味特征.
- 相关性分析将已识别的NVM与电子舌头测量联系起来.
主要成果:
- 固定和干燥 (轻成形,低温烤) 被确定为NVM转换的关键阶段.
- 感官分析显示,苦味和度降低,乌玛米和甜味增加.
- 106种与味道相关的NVM,包括脂质,和黄酸甘氨酸,与乌玛米,甜味和苦味有很强的相关性.
结论:
- 固定为DYMJ奠定了化学基础,而干燥显著塑造了其最终的风味和味道.
- 特定的NVM如lysophosphatidylcholines,某些和Quercetin是DYMJ特有的味道的关键贡献者.
- 这些发现为增强绿茶加工和风味优化提供了宝贵的见解.
相关概念视频
02:55The Evidence for Evolution
47.7K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
47.7K
01:10Volatilization
5.7K
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
5.7K
01:54Convergent Evolution
31.5K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
31.5K
01:24The Physiology of Taste
7.3K
The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the...
7.3K
01:24Eukaryotic Evolution
40.3K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
40.3K
02:31Synteny and Evolution
3.8K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.8K