巴戟天及根皮与木心UPLC特征指纹图谱与化学模式识别方法研究

目的建立基于UPLC特征指纹图谱-化学模式识别方法研究巴戟天Morindae Officinalis Radix及根皮与木心的差异性。方法采用UPLC技术建立巴戟天根皮与木心环烯醚萜类和寡聚糖类特征指纹图谱,结合相似度分析、方差分析、聚类分析、主成分分析(PCA)进行化学模式识别研究。结果分别建立了巴戟天及根皮与木心环烯醚萜类和寡聚糖类UPLC特征指纹图谱,并分别确定了12个和20个共有峰,巴戟天根皮与木心UPLC特征指纹图谱差异性明显。结论巴戟天环烯醚萜类和寡聚糖类UPLC特征指纹图谱-化学模式识别方法分析能够整体、全面、真实地反映出巴戟天根皮与木心的差异性,为巴戟天去木心必要性提供了依据。

Identification of Morindae Officinalis Radix root cortex and woody core based on UPLC characteristic chromatogram and chemical pattern recognition method

Objective A method for identification of root cortex and woody core of Morindae Officinalis Radix (MOR) was established based on Ultra Performance Liquid Chromatography (UPLC) characteristic chromatogram and chemical pattern recognition technique. Methods Using UPLC technique, the characteristic chromatograms of iridoids and oligosaccharides of root cortex and woody core of MOR were established, combined with the similarity analysis, variance analysis, cluster analysis, principal component analysis (PCA) methods for chemical pattern recognition research. Results The UPLC characteristic chromatograms of iridoids and oligosaccharides of different parts of MOR were established, and 12 and 20 common characteristic peaks were confirmed, respectively. The UPLC characteristic chromatograms of root cortex and woody core of MOR were obviously different. Conclusion UPLC characteristic chromatograms of iridoids and oligosaccharides of MOR combined with chemical pattern recognition analysis method can reflect the difference of root cortex and woody core of MOR integrally, comprehensively and truly, which provides more sufficient basis for the necessity of removing woody core from MOR.