白三七及近源种药材指纹图谱与识别模式的构建及其应用研究

目的建立并识别不同产地白三七药材HPLC指纹图谱,为其质量控制及标准制定提供参考。方法采用HPLC法建立白三七指纹图谱,同时应用相似度评价、聚类分析和主成分分析(PCA)对实验数据进行识别,以分析不同产地白三七药材间及同科同属5种药材的相似性及差异性,并通过总量统计矩法对白三七药材共有峰进行定性定量分析。结果白三七指纹图谱共标定16个共有峰,并指认了人参皂苷Rg1、Re、Rb1及竹节参皂苷V、IV、IVa色谱峰;其中竹节参皂苷V和IV在不同批次白三七样品中的质量波动较小;各产地白三七样品除产自四川大凉山样品(S7)外相似度在0.90以上;聚类分析及主成分分析均将白三七样品分为3类;五加科人参属5种药材成分总量统计矩参数差异较大。结论建立的白三七HPLC指纹图谱和化学识别模式可为其质量控制和区分同科同属5种药材提供科学依据。

Establishment and application of chemical fingerprint and pattern recognition for Panacis Japonici Rhizoma

Objective To establish and identify HPLC fingerprints of Panacis Japonici Rhizoma from different regions, and provide a scientific method for quality its control and standardization.Methods The fingerprints of Panacis Japonici Rhizoma were established based on HPLC method. The similarity evaluation, cluster analysis (CA), and principal component analysis (PCA) were applied for the experimental data, in order to find out the similarities and differences among the 10 batches of Panacis Japonici Rhizoma from different regions. Meanwhile, the qualitatively and quantitatively analyze were adopted in the common peaks of Panacis Japonici Rhizoma by total statistical moment method.Results The HPLC fingerprint with 16 common peaks was established, for the common chemical components, six were identified as ginsenoside Rg₁, ginsenoside Re, ginsenoside Rb₁, chikusetsusaponin V, chikusetsusaponin IV, an chikusetsusaponin IVa, respectively. Among them, the contents of chikusetsusaponin V and IV in different batches of Panacis JaponiciRhizoma samples showed little differences. The similarities of samples from various regions except S7 were over 0.90. The samples were classified into three categories by CA and PCA methods. The parameters of total statistical moment for five species of Panax genus showed significantly differences.Conclusion The developed HPLC fingerprint of Panacis Japonici Rhizoma combined with chemical pattern recognition can provide a scientific instruction for the quality control of Panacis Japonici Rhizoma and the differentiation of five herb medicines from Panax genus.