天然产物研究与开发 ›› 2021, Vol. 33 ›› Issue (5): 791-801.doi: 10.16333/j.1001-6880.2021.5.011

• 开发研究 • 上一篇    下一篇

基于HPLC指纹图谱结合化学计量学的甘草微波制与传统炮制的差异研究

张育贵,张淑娟,吴红伟,李东辉,牛江涛,司昕蕾,边甜甜,李越峰*   

  1. 甘肃中医药大学药学院 甘肃省中药质量与标准研究重点实验室 甘肃省中药制药工艺工程研究中心,兰州 730000
  • 出版日期:2021-05-28 发布日期:2021-06-01

Study on the difference between microwave-processed and traditional-processed licorice based on HPLC fingerprint and stoichiometry

ZHANG Yu-gui,ZHANG Shu-juan,WU Hong-wei,LI Dong-hui,NIU Jiang-tao,SI Xin-lei,BIAN Tian-tian,LI Yue-feng*   

  1. Key Laboratory of Standard and Quality of Chinese Medicine Research of Gansu/Chinese Medicine Pharmaceutical Process Engineering Research Center of Gansu Province,College of Pharmacy in Gansu University of Chinese Medicine,Lanzhou 730000,China
  • Online:2021-05-28 Published:2021-06-01
  • Supported by:
    (]国家自然科学基金-地区科学基金(81960713);甘肃省中药质量与标准研究重点实验室开放基金(ZYZL18-008);甘肃中医药大学2019年研究生创新基金(2020CX41);甘肃省中药制药工艺工程研究中心开放基金(ZYGY202003)

摘要:

分别建立生甘草、蜜炙甘草、清炒甘草及微波制甘草的HPLC指纹图谱,生甘草和蜜炙甘草均标定了17个共有峰,炒甘草和微波制甘草均标定了14个共有峰,4、5、11号峰为生甘草和蜜炙甘草的特有峰;不同炮制品相对应成分峰面积大小有所不同;混合对照品指认出的5个峰分别为:2号峰芹糖甘草苷,3号峰甘草苷,8号峰异甘草苷,10号峰甘草素,16号峰甘草酸;指纹图谱相似度除样品S5、C1、C5的相似度在0.883~0.900之间外,其余均大于0.914,说明甘草样品经不同方法炮制后总体相对稳定。聚类分析(CA)结果显示,生甘草、蜜炙甘草能够各自聚类,能够明确判别;炒甘草和微波制甘草聚为一类,无法明确判别。主成分分析(PCA)结果显示甘草四种炮制品基本各自聚类,有明显差异,主要差异成分峰为8号峰,是异甘草苷。偏最小二乘-判别分析(PLS-DA)结果显示甘草四种炮制品各自聚类效果良好,但清炒甘草和微波制甘草二者比较集中,结果和CA一致。因此,分别对微波制甘草及清炒甘草、微波制甘草和生甘草、微波制甘草和蜜炙甘草建立正交偏最小二乘-判别分析(OPLS-DA)模型,均具有良好的预测能力。OPLS-DA的差异成分分析变量重要性投影(VIP)结果显示,微波制甘草和生甘草的主要差异色谱峰为2、1、8号色谱峰,微波制甘草和清炒甘草的差异成分峰为7、2、9、15、6、13、17、16、14号色谱峰,微波制甘草和蜜炙甘草的主要差异色谱峰为8、13、7、16号色谱峰。以上研究确定出了甘草经微波加热炮制后与生品、蜜炙品、清炒品的差异成分,实验方法准确度高,重复性好,为现代微波加热炮制方法的可行性提供参考。

关键词: 甘草, 清炒, 蜜炙, 微波制, HPLC指纹图谱, 化学计量学

Abstract:

The HPLC fingerprints of raw licorice,honey roasted licorice,stir-fried licorice and microwave-processed licorice were established respectively.Both raw licorice and honey roasted licorice were calibrated with 17 common peaks,but both stir-fried licorice and microwave-processed licorice were calibrated with 14 common peaks.The peaks of No.4,No.5,and No.11 are the unique peaks of raw licorice and honey roasted licorice;the peak areas of the corresponding components of different processed products are different.Five peaks were identified by the mixed reference product.That is,peak 2 is celeryside,peak 3 is glycyrrhizin,peak 8 is isoliquiritin,peak 10 is glycyrrhizin,and peak 16 is glycyrrhizin.The similarity of fingerprints is greater than 0.914 except the samples S5,C1,and C5 is between 0.883-0.900.Various methods of chemometrics can well distinguish four processed products of licorice.Meanwhile,the variable importance projection (VIP) results of OPLS-DA′s VIPs have identified the different components of the four processed licorice products.The experimental method has high accuracy and good repeatability,which provides a reference for the feasibility of modern microwave heating processing methods.

Key words: licorice, stir-baking simply, microwave-processed, roasted with honey, HPLC fingerprint, stechiometry

中图分类号:  R282.5