Baiyacha, a wild tea plant naturally occurring high contents of theacrine and 3"-methyl-epigallocatechin gallate from Fujian, China
Baiyacha, a wild tea plant naturally occurring high contents of theacrine and 3"-methyl-epigallocatechin gallate from Fujian, China
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白芽茶，一种来自中国福建的天然野生茶树，富含茶碱和 3'-甲基表没食子儿茶素没食子酸酯
DOI：
10.1038/s41598-020-66808-x
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发表时间：
2020-06-16
影响因子：
4.6
通讯作者：
Chen, Liang
中科院分区：
文献类型：
--
作者：
Jin, Ji-Qiang;Jiang, Chen-Kai;Chen, Liang
白崖茶（BYC）是一种生长在中国东南部福建省偏远山区的野生茶树。然而，对这种植物的科学研究仍然有限。研究结果表明，BYC具有茶树（Camellia gymnogyna Chang）的典型形态特征。这是福建以前没有发现过的。化学分析表明，部分BYC茶树含有丰富的嘌呤生物碱和儿茶素，特别是茶碱和3”-甲基-表没食子儿茶素没食子酸酯（EGCG3”Me）含量高，具有多种生物活性，在普通茶树中很少观察到。随着茶苗叶片成熟度的提高，BYC中EGCG3 " Me和茶碱含量均呈上升趋势，而咖啡因含量则显著下降。研究结果为茶树的形态和化学成分提供了丰富的信息，可用于今后的茶叶生产、育种和科学研究。
Baiyacha (BYC) is a kind of wild tea plant growing and utilizing in the remote mountain area of Fujian province, Southeastern China. However, scientific studies on this plant remain limited. Our results showed that BYC exhibits the typical morphological characteristics of Camellia gymnogyna Chang, a closely related species of C. sinensis (L.) O. Kuntze, which was not found in Fujian before. Chemical profiling revealed that parts of BYC plants are rich in purine alkaloids and catechins, especially featuring high levels of theacrine and 3 '' -methyl-epigallocatechin gallate (EGCG3 '' Me), chemical compounds with multiple biological activities that are rarely observed in regular tea plants. The contents of EGCG3 '' Me and theacrine in BYC both increased with the leaf maturity of tea shoots, whereas the caffeine content decreased significantly. The obtained results provide abundant information about the morphology and chemical compounds of BYC and may be used for tea production, breeding, and scientific research in the future.