食品科学 ›› 2020, Vol. 41 ›› Issue (16): 179-184.doi: 10.7506/spkx1002-6630-20190807-081

• 成分分析 • 上一篇    

高速逆流色谱法分离制备茯苓皮中茯苓酸A和茯苓酸B

殷梦舟,刘莹,张莉佳,王益,黄文   

  1. (华中农业大学食品科学技术学院,湖北 武汉 430070)
  • 发布日期:2020-08-19
  • 基金资助:
    “十三五”国家重点研发计划重点专项(2017YFC1703006); 湖北省农业科技创新中心农产品加工与综合利用项目(2016-620-000-001-044)

Isolation and Preparation of Poricoic Acid A and Poricoic Acid B from Poriae Cutis by High-speed Counter Current Chromatography

YIN Mengzhou, LIU Ying, ZHANG Lijia, WANG Yi, HUANG Wen   

  1. (College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China)
  • Published:2020-08-19

摘要: 以茯苓皮为原料,采用高速逆流色谱法分离制备茯苓酸A和茯苓酸B。利用正丁醇-水两相溶剂提取茯苓皮总三萜,正己烷-乙酸乙酯-甲醇-水(3∶6∶4∶2,V/V)为两相溶剂系统,在主机正转、转速800 r/min、分离流速3 mL/min条件下进行高速逆流色谱分离纯化,得到4 个峰。通过高效液相色谱对收集的4 个峰分别进行纯度检测,将纯度较高的峰III和峰IV进行质谱和核磁共振结构鉴定,峰III为茯苓酸B,峰IV为茯苓酸A,其纯度分别为90%、92%。研究结果提供了一种从茯苓皮中分离制备茯苓酸A和茯苓酸B的有效方法,该法分离效率高,操作简单,对茯苓皮在食品和医药领域的应用具有重要意义。

关键词: 茯苓皮;高速逆流色谱;茯苓酸A;茯苓酸B

Abstract: The epidermis of Poria cocos (Schw.) Wolf was used as the raw material to separate and prepare poricoic acid A and poricoic acid B by high-speed countercurrent chromatography (HSCCC). Total triterpenoids were extracted with n-butanol/water two-phase solvent system and fractionated into four peaks by HSCCC using a two-phase solvent system composed of hexane, ethyl acetate, methanol and H2O (3:6:4:2, V/V) under the conditions of clockwise rotation at a speed of 800 r/min, and a flow rate of 3 mL/min. The four peaks were collected and their purity was determined by high performance liquid chromatography (HPLC), and peaks III and IV with high purity were further identified by mass spectrometry (MS) and nuclear magnetic resonance (NMR). The results showed that peak III was identified as poricoic acid B and peak IV as poricoic acid A, which were 90% and 92% pure, respectively. The results of this study provide a simple and efficient method for the separation and preparation of poricoic acid A and poricoic acid B from Poriae Cutis, which is of great significance for the application of Poriae Cutis in the food and medical fields.

Key words: Poriae Cutis; high-speed countercurrent chromatography; poricoic acid A; poricoic acid B

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