[关键词]
[摘要]
目的 建立不同基原枳实的加味温胆汤高效液相色谱法(HPLC)指纹图谱,并采用化学模式识别分析方 法综合评价不同批次加味温胆汤的质量。方法 采用 Kromasil 100-5 C18色谱柱(250 mm × 4.6 mm,5 μm),以 乙腈-0.1% 甲酸溶液为流动相,梯度洗脱;检测波长 318 nm;流速 1 mL·min-1 ;柱温 30 ℃;进样量 10 μL, 建立不同基原枳实的加味温胆汤 HPLC 指纹图谱,并进行相似度分析。采用聚类分析(HCA)、主成分分析 (PCA)与正交偏最小二乘法判别分析(OPLS-DA)评价不同批次不同基原枳实的加味温胆汤的质量差异,并确定 质量差异化合物。结果 加味温胆汤以不同基原的枳实组方可分成典型的两类 HPLC 指纹图谱,确定了 32~ 33 个共有峰;色谱峰主要来自枳实(酸橙枳实、甜橙枳实)、化橘红、毛冬青、竹茹、五指毛桃。通过与对照 品比对鉴定了 14 个成分,分别为绿原酸(峰 4)、新西兰牡荆苷Ⅱ(峰 9)、对香豆酸(峰 10)、异绿原酸 B(峰 15)、柚皮芸香苷(峰 16)、异绿原酸 A(峰 17)、柚皮苷(峰 18)、橙皮苷(峰 19)、异绿原酸 C(峰 20)、新橙皮 苷(峰 21)、柚皮素(峰 25)、补骨脂素(峰 26)、川陈皮素(峰 32)、橘皮素(峰 33)。以酸橙枳实为枳实基原组 成的 10 批加味温胆汤 HPLC 指纹图谱相似度为 0.950~0.997;以甜橙枳实为枳实基原组成的 3 批加味温胆汤 HPLC 指纹图谱相似度为 0.952~0.982;2 种不同基原枳实组成的加味温胆汤 HPLC 对照指纹图谱的相似度为 0.805。化学模式识别结果显示,13 批样品可分为 3 类,分别为 S1~S8、S11~S13、S9~S10,筛选出 20 个差 异色谱峰,其中影响不同基原枳实的加味温胆汤质量差异标志物为橙皮苷、新橙皮苷、柚皮苷、川陈皮素。 结论 该研究所建立的不同基原枳实的加味温胆汤 HPLC 指纹图谱结合化学模式识别方法可系统、全面地评价 加味温胆汤的质量差异,可为其新制剂研发的工艺与质量标准研究提供实验基础。
[Key word]
[Abstract]
Objective To establish HPLC fingerprints of Jiawei Wendan Decoction prepared from different Aurantii Fructus Immaturus varieties and comprehensively evaluate the quality of various batches using chemical pattern recognition methods. Methods An HPLC fingerprinting method was developed using a Kromasil 100-5 C18 column (250 mm × 4.6 mm,5 μm) with acetonitrile-0.1% formic acid aqueous solution as the mobile phase under gradient elution. The detection wavelength was set at 318 nm,flow rate at 1 mL·min-1 ,column temperature at 30 ℃,and injection volume at 10 μL. HPLC fingerprints of Jiawei Wendan Decoction prepared from different Citrus aurantium varieties were established and similarity analysis was conducted. Hierarchical cluster analysis (HCA),principal component analysis (PCA), and orthogonal partial least squares discriminant analysis (OPLS-DA) were employed to evaluate quality variations and identify differential chemical markers among different batches prepared from different Citrus aurantiumvarieties. Results The HPLC fingerprints of Jiawei Wendan Decoction prepared from different Citrus aurantium varieties were classified into two typical patterns,with 32-33 common peaks identified. The characteristic peaks mainly originated from Aurantii Fructus Immaturus (respectively from Citrus aurantium and Citrus sinensis),Citri Grandis Exocarpium, Ilex Pubescens Radix, Bambusae Caulis in Taenias and Fici Simplicissimae Radix. Fourteen components were identified by comparison with reference standards:chlorogenic acid (peak 4),vicenin-2(peak 9), p-coumaric acid (peak 10),isochlorogenic acid B (peak 15),narirutin (peak 16),isochlorogenic acid A (peak 17), naringin (peak 18),hesperidin (peak 19),isochlorogenic acid C (peak 20),neohesperidin (peak 21),naringenin (peak 25),psoralen (peak 26),nobiletin (peak 32),and tangeretin (peak 33). The similarity of HPLC fingerprints for 10 batches prepared from Citrus aurantium ranged from 0.950 to 0.997,while that for three batches prepared from Citrus sinensis ranged from 0.952 to 0.982. The similarity between the reference fingerprints of the two different Aurantii Fructus Immaturus varieties was 0.805. Chemical pattern recognition analysis classified the 13 batches into three categories: S1-S8, S11-S13, and S9-S10, and screened 20 differential peaks. Among these, hesperidin, neohesperidin,naringin,and nobiletin were identified as quality-differentiating markers of Jiawei Wendan Decoction prepared from different varieties of Aurantii Fructus Immaturus varieties. Conclusion The established HPLC fingerprinting method combined with chemical pattern recognition enables systematic and comprehensive quality evaluation of Jiawei Wendan Decoction prepared from different Aurantii Fructus Immaturus varieties, providing an experimental foundation for process optimization and quality standard development in new formulation research.
[中图分类号]
R284.1
[基金项目]
广州市科技计划项目-市校(院)企联合资助专项(2023A03J0296);广东省中医药局科研项目(20231297)