杜仲茶的化学成分分析、定量分析及生物活性。
Chemical profiling, quantitation, and bioactivities of Du-Zhong tea.
机构信息
The MOE Key Laboratory for Standardization of Chinese Medicines and the Shanghai Key Laboratory for Compound Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
The MOE Key Laboratory for Standardization of Chinese Medicines and the Shanghai Key Laboratory for Compound Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
出版信息
Food Chem. 2022 Nov 15;394:133552. doi: 10.1016/j.foodchem.2022.133552. Epub 2022 Jun 22.
Du-Zhong tea is a health beverage produced from Eucommia ulmoides leaves (EUL) as raw materials using traditional tea processing and Chinese herbal pieces processing methods. To evaluate the differences between tender leaves and mature leaves of Du-Zhong tea, UPLC-Q-TOF MS was used to analyze the constituents in EUL collected in April and August. A total of 52 compounds, including iridoids, phenylpropanoids, flavonoids, lignans, and other types of compounds were identified. The contents of nine ingredients in the tender and mature leaves of E. ulmoides were determined by HPLC-DAD analysis. The results show that the average contents of the compounds in tender leaves were significantly higher than those in mature leaves. Lastly, the antioxidant and antipancreatic lipase activities of commercial Du-Zhong tea made by leaves of different maturity were evaluated. Du-Zhong tea with d-grade exhibited relatively higher antioxidant, while C-grade exhibited greater lipase inhibitory activities.
杜仲茶是以杜仲叶为原料，采用传统茶叶加工和中药饮片加工方法制成的保健饮品。为了评价杜仲茶的嫩叶和成熟叶之间的差异，采用 UPLC-Q-TOF MS 分析了 4 月和 8 月采集的杜仲叶中的成分。共鉴定出 52 种化合物，包括环烯醚萜类、苯丙素类、黄酮类、木脂素类等类型的化合物。采用 HPLC-DAD 分析测定了杜仲叶嫩叶和成熟叶中 9 种成分的含量。结果表明，嫩叶中化合物的平均含量明显高于成熟叶。最后，评价了不同成熟度的杜仲叶制成的商品杜仲茶的抗氧化和抗胰脂肪酶活性。D 级杜仲茶具有相对较高的抗氧化活性，而 C 级则具有更大的脂肪酶抑制活性。
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