The present study aimed at exploring different roles of the same compound in different environment, using preparative HPLC, and the significance to investigating bio-active constituents in traditional Chinese medicine...The present study aimed at exploring different roles of the same compound in different environment, using preparative HPLC, and the significance to investigating bio-active constituents in traditional Chinese medicine(TCM) on the basis of holism. In this study, the depletion of target component ferulic acid(FA) by using preparative HPLC followed by antioxidant activity testing was applied to investigate the roles of FA in Angelicae Sinensis Radix(DG), Chuanxiong Rhizoma(CX) and their combination(GX). The antioxidant activity was performed by 1, 1-diphenyl-2-picrylhydrazyl(DPPH) radical-scavenging activity testing. FA was successfully and exclusively depleted from DG, CX, and GX, respectively. By comparing the effects of the samples, it was found that FA was one of the main antioxidant constituents in DG, CX and GX, and the roles of FA were DG > CX > GX. Furthermore, the effects of FA varied at different doses in these herbs. This study provided a reliable and effective approach to clarifying the contribution of same compound in different TCMs to their bio-activities. The role of a constituent in different TCMs might be different, and a component with the same content might have different effects in different chemical environments. Furthermore, this study also suggested the potential utilization of preparative HPLC in the characterization of the roles of multi-ingredients in TCM.展开更多
分析当归及其药对当归—白芍中阿魏酸的含量。采用HPLC-DAD法测定阿魏酸的含量,色谱柱为C18ODS(250 mm×4.6 mm, 5μm);柱温为(35±1)℃;流动相为乙腈—0.085%磷酸溶液;流速为0.9 mL/min;检测波长为322nm;等度洗脱。实验结果表...分析当归及其药对当归—白芍中阿魏酸的含量。采用HPLC-DAD法测定阿魏酸的含量,色谱柱为C18ODS(250 mm×4.6 mm, 5μm);柱温为(35±1)℃;流动相为乙腈—0.085%磷酸溶液;流速为0.9 mL/min;检测波长为322nm;等度洗脱。实验结果表明,当归及其药对当归—白芍检测液中阿魏酸的平均含量分别为25.015、20.975μg/mL,药对中阿魏酸含量下降了16.15%。该方法简便快速,精密度高,重复性好,其结果准确可靠,适用于当归及其药对资源的质量控制。展开更多
基金supported by National Key Technology R&D Program(No.2008BAI51B01)the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20113237110010)A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
文摘The present study aimed at exploring different roles of the same compound in different environment, using preparative HPLC, and the significance to investigating bio-active constituents in traditional Chinese medicine(TCM) on the basis of holism. In this study, the depletion of target component ferulic acid(FA) by using preparative HPLC followed by antioxidant activity testing was applied to investigate the roles of FA in Angelicae Sinensis Radix(DG), Chuanxiong Rhizoma(CX) and their combination(GX). The antioxidant activity was performed by 1, 1-diphenyl-2-picrylhydrazyl(DPPH) radical-scavenging activity testing. FA was successfully and exclusively depleted from DG, CX, and GX, respectively. By comparing the effects of the samples, it was found that FA was one of the main antioxidant constituents in DG, CX and GX, and the roles of FA were DG > CX > GX. Furthermore, the effects of FA varied at different doses in these herbs. This study provided a reliable and effective approach to clarifying the contribution of same compound in different TCMs to their bio-activities. The role of a constituent in different TCMs might be different, and a component with the same content might have different effects in different chemical environments. Furthermore, this study also suggested the potential utilization of preparative HPLC in the characterization of the roles of multi-ingredients in TCM.
基金江苏省方剂研究重点实验室开放课题基金(FJK2006011)University Grants Committee of the Hong Kong SAR(AoE/B-10/01)Research Grants Council of the Hong Kong SAR(HKUST6419/06M)
文摘分析当归及其药对当归—白芍中阿魏酸的含量。采用HPLC-DAD法测定阿魏酸的含量,色谱柱为C18ODS(250 mm×4.6 mm, 5μm);柱温为(35±1)℃;流动相为乙腈—0.085%磷酸溶液;流速为0.9 mL/min;检测波长为322nm;等度洗脱。实验结果表明,当归及其药对当归—白芍检测液中阿魏酸的平均含量分别为25.015、20.975μg/mL,药对中阿魏酸含量下降了16.15%。该方法简便快速,精密度高,重复性好,其结果准确可靠,适用于当归及其药对资源的质量控制。