Long Tingyu, Gu Ronghui, Linghu Chu, Long Jingyu, Kennelly Edward J, Long Chunlin
Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang 550025, China; School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China.
Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang 550025, China; School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China.
Food Chem. 2023 Aug 15;417:135873. doi: 10.1016/j.foodchem.2023.135873. Epub 2023 Mar 13.
Traditionally in Northern China, Acer truncatum leaves (ATL) have been used as herbal tea, now consumed worldwide. Few studies have reported ATL metabolites from different areas and their correlation with the environment. Thus, metabolomic analyses were conducted on ATL collected from twelve locations throughout four environmental zones in Northern China to understand the phytochemical differences with regards to environmental conditions. Sixty-four compounds, mostly flavonoids (FLAs) and gallic acid-containing natural products (GANPs), were characterized, including 34 previously unreported constituents from A. truncatum. Twenty-two markers were useful to differentiate ATL from the four environmental zones. Humidity, temperature, and sunshine duration are the predominant factors affecting FLAs and GANPs levels. Sunshine duration was positively correlated with eriodictyol (r = 0.994, p < 0.01), and humidity negatively with epicatechin gallate (r = -0.960, p < 0.05). These findings provide insights into ATL phytochemistry, aiding cultivation of A. truncatum tea with higher potential health benefits.
在中国北方，元宝枫叶传统上被用作凉茶，现在在全球范围内都有人饮用。很少有研究报道来自不同地区的元宝枫叶代谢产物及其与环境的相关性。因此，对采自中国北方四个环境区域十二个地点的元宝枫叶进行了代谢组学分析，以了解其在环境条件方面的植物化学差异。共鉴定出64种化合物，主要是黄酮类化合物（FLAs）和含没食子酸的天然产物（GANPs），其中包括34种先前未报道的元宝枫成分。22个标志物有助于区分来自四个环境区域的元宝枫叶。湿度、温度和日照时长是影响黄酮类化合物和含没食子酸的天然产物水平的主要因素。日照时长与圣草酚呈正相关（r = 0.994，p < 0.01），湿度与表儿茶素没食子酸酯呈负相关（r = -0.960，p < 0.05）。这些发现为元宝枫叶的植物化学研究提供了见解，有助于培育具有更高潜在健康益处的元宝枫茶。
