茶叶非挥发性代谢物的高度依赖差异,由广泛向的代谢学揭示
Jilai Cui1,2,3, Yiwei Yang1,2, Yu Che1,2
1Dabie Mountain Laboratory, College of Tea and Food Science, Xinyang Normal University, Xinyang 464000, China.
茶叶的质量受到海拔高度的影响. 这项研究使用UPLC-MS/MS从不同海拔高度分析茶叶中的代谢物,揭示了影响茶味的黄酸和酸的显著差异.
科学领域:
- 农业科学 农业科学
- 植物生物化学 植物生物化学
- 代谢学 代谢学 代谢学
背景情况:
- 茶的质量取决于其原材料,诸如品种和种植实践等因素影响茶叶成分.
- 高度对茶叶代谢概况和品质的具体影响在很大程度上仍未被描述.
研究的目的:
- 为了研究不同高度种植的茶叶的非挥发性代谢物概况.
- 为了识别Camellia sinensis*中受高度影响的关键代谢途径和化合物.
- 了解海拔高度如何影响新鲜茶叶中的风味前体.
主要方法:
- 超高性能液态染色学-并联质谱学 (UPLC-MS/MS) 用于分析非挥发性代谢物.
- 应用了正交部分最小方程差异分析 (OPLS-DA) 来识别差异性代谢物.
- 基因和基因组的京都百科全书 (KEGG) 路径丰富分析进行.
主要成果:
- 总共有2323种代谢物被确定,其中黄和酸占主导地位.
- 在长达350米和600米的茶叶之间发现了116种不同的代谢物.
- 关键的途径,包括kaempferol,luteolin,flavones和莉酸代谢的生物合成,显示了差异激活.
结论:
- 高度显著影响茶叶的代谢成分,影响脂质,酸和黄酸的积累.
- 这些由高度引起的代谢变化在茶叶风味的发展中起着至关重要的作用.
- 这项研究为了解茶叶生产中因海拔高度而产生的质量变化提供了基础.
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