摘要
二氢杨梅素(Dihydromyricetin,DMY)是藤茶的关键活性成分,具有多种生理功效。为了分析不同产地藤茶中DMY的含量,本研究以a、b、c及d省4个区域所产藤茶为原料,提取DMY后采用高效液相色谱法(HPLC)测定其含量。结果表明,4个区域藤茶的DMY干重含量为21.2~36.2g/100g;在同等级藤茶中,a区域产藤茶DMY含量最高(30.9~36.2g/100g);相同产地不同等级藤茶之间,特级藤茶DMY含量高于一级、二级藤茶;相同产地同等级藤茶之间,不同采摘时间的藤茶DMY含量没有显著差异。即产地及等级对藤茶DMY含量影响较明显,而采摘时间的影响较小。在实际种植及生产时可根据需求选择相应的产地或品种,为提高藤茶的经济价值提供参考。
Dihydromyricetin(DMY)is the key functional ingredient in Ampelopsis grossedentata,with multiple physiological effects.In order to determine the content of DMY in Ampelopsis grossedentata from different producing regions,Ampelopsis grossedentata was extracted from four producing regions in a,b,c and d provinces were measured by high-performance liquid chromatography(HPLC)after DMY extaction.The results showed that the dry weight content of DMY from Ampelopsis grossedentata produced in the four producing regions ranged from 21.2 to 36.2 g/100g.Among the same grade of Ampelopsis grossedentata,from which produced in a region exhibited the highest content(30.9~36.2 g/100g),while among different grades of Ampelopsis grossedentata,the DMY content in premium Ampelopsis grossedentata produced from the same producing region was higher than that of first and second grade Ampelopsis grossedentata.Moreover,there was no significant difference in DMY content between various Ampelopsis grossedentata produced from same producing region and grade at different picking times.Therefore,the producing regions and grade of quality have a obvious impact on the DMY content,whereas the effect of picking time was less affected.In the actual planting and production should choose the corresponding origin or variety according to the demand,to provide a reference for improving the economic value of Ampelopsis grossedentata.
作者
夏绪红
刘庆兰
陶小庆
XIA Xuhong;LIU Qinglan;TAO Xiaoqing(Tongren City Inspection and Testing Institute,Tongren 554300,China)
出处
《安徽农学通报》
2024年第1期73-77,共5页
Anhui Agricultural Science Bulletin
关键词
藤茶
茶叶产地
茶叶采摘
二氢杨梅素
Ampelopsis grossedentata
tea producing region
tea picking time
dihydromyricetin
作者简介
夏绪红(1984—),男,贵州铜仁人,工程师,从事食品、药品、化妆品的检验检测工作。;通信作者:刘庆兰(1979—),女,贵州铜仁人,主管药师,从事药品、化妆品检验检测工作。
