目的筛选夏枯草的质量标志物,并建立其含量测定的方法。方法利用UPLC Q Exactive Plus Orbitrap高分辨液质联用仪进行全成分分析,采用高效液相色谱(HPLC)法建立夏枯草的指纹图谱,对20批次夏枯草药材进行化学计量学分析,筛选夏枯草的质...目的筛选夏枯草的质量标志物,并建立其含量测定的方法。方法利用UPLC Q Exactive Plus Orbitrap高分辨液质联用仪进行全成分分析,采用高效液相色谱(HPLC)法建立夏枯草的指纹图谱,对20批次夏枯草药材进行化学计量学分析,筛选夏枯草的质量标志物并测定含量。综合分析相关的文献数据,研究不同产地夏枯草的迷迭香酸含量变化,进而评价药材质量。结果从夏枯草中共鉴定出72个化合物,其中有机酸类化合物36个,占总数的50%;20批次夏枯草的指纹图谱中共标记了8个共有峰,指认出咖啡酸、芦丁、金丝桃苷和迷迭香酸4个成分,各批次之间的相似度大于0.900。化学计量学分析结果表明,迷迭香酸可能是夏枯草的潜在质量标志物。测定20批次夏枯草中迷迭香酸含量,发现有5个批次不合格。综合文献分析了158批次夏枯草,发现迷迭香酸含量的整体合格率为59.77%。结论迷迭香酸是夏枯草的潜在质量标志物,其含量能有效地评价不同产地夏枯草药材的质量。展开更多
Ten known flavonoid C-glycosides identified as 2′′-O-β-D-glucopyranosyl isovitexin(1),spinosin(2),6′′′-acetyl spinosin(3),6′′′-p-hydroxycinnamoyl-2′′O-β-D-glucopyranosyl isovitexin(4),6′′′-p-hydroxy-cin...Ten known flavonoid C-glycosides identified as 2′′-O-β-D-glucopyranosyl isovitexin(1),spinosin(2),6′′′-acetyl spinosin(3),6′′′-p-hydroxycinnamoyl-2′′O-β-D-glucopyranosyl isovitexin(4),6′′′-p-hydroxy-cinnamoyl spinosin(5),6′′′-(E)-feruloyl O-β-Dglucopyranosyl isovitexin(6),isospinosin(7),isovitexin(8),swertisin(9),swertiajaponin(10)were purified from the seeds of Hovenia dulcis Thunb.Their structures were confirmed by spectroscopic data analysis and comparison with previous literature.All compounds were obtained from H.dulcis for the first time.展开更多
文摘目的筛选夏枯草的质量标志物,并建立其含量测定的方法。方法利用UPLC Q Exactive Plus Orbitrap高分辨液质联用仪进行全成分分析,采用高效液相色谱(HPLC)法建立夏枯草的指纹图谱,对20批次夏枯草药材进行化学计量学分析,筛选夏枯草的质量标志物并测定含量。综合分析相关的文献数据,研究不同产地夏枯草的迷迭香酸含量变化,进而评价药材质量。结果从夏枯草中共鉴定出72个化合物,其中有机酸类化合物36个,占总数的50%;20批次夏枯草的指纹图谱中共标记了8个共有峰,指认出咖啡酸、芦丁、金丝桃苷和迷迭香酸4个成分,各批次之间的相似度大于0.900。化学计量学分析结果表明,迷迭香酸可能是夏枯草的潜在质量标志物。测定20批次夏枯草中迷迭香酸含量,发现有5个批次不合格。综合文献分析了158批次夏枯草,发现迷迭香酸含量的整体合格率为59.77%。结论迷迭香酸是夏枯草的潜在质量标志物,其含量能有效地评价不同产地夏枯草药材的质量。
基金National Natural Science Foundation of China(Grant Nos.81703379 and U1801287)Key-Area Research and Development Program of Guangdong Province(Grant No.2020B1111110007)+3 种基金Science and Technology Planning Project of Guangdong Province(Grant No.2018B020207008)Key Laboratory Program of Guangzhou(Grant 201902010082)the Specific Research Fund for TCM Science and Technology of Guangdong Provincial Hospital of Chinese Medicine(Grant Nos.YN2016QJ05 and YN2015MS03)Key Project of High-level University Construction of Guangzhou University of Chinese Medicine(Grant No.XK2018019)。
文摘Ten known flavonoid C-glycosides identified as 2′′-O-β-D-glucopyranosyl isovitexin(1),spinosin(2),6′′′-acetyl spinosin(3),6′′′-p-hydroxycinnamoyl-2′′O-β-D-glucopyranosyl isovitexin(4),6′′′-p-hydroxy-cinnamoyl spinosin(5),6′′′-(E)-feruloyl O-β-Dglucopyranosyl isovitexin(6),isospinosin(7),isovitexin(8),swertisin(9),swertiajaponin(10)were purified from the seeds of Hovenia dulcis Thunb.Their structures were confirmed by spectroscopic data analysis and comparison with previous literature.All compounds were obtained from H.dulcis for the first time.