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人参皂苷Rg1的微生物转化研究

董阿玲, 崔亚君, 郭洪祝, 郑俊华, 果德安*   

  1. 北京大学药学院天然药物及仿生药物国家重点实验室, 北京 100083
  • 收稿日期:2001-05-16 修回日期:2001-07-09 出版日期:2001-09-15 发布日期:2001-09-15
  • 通讯作者: 果德安*

Microbiological Transformation of Ginsenoside Rg1

Dong Aling, Cui Yajun, Guo Hongzhu, Zheng Junhua, Guo Dean*   

  1. School of Pharmaceutical Sciences, Peking University, Beijing 100083
  • Received:2001-05-16 Revised:2001-07-09 Online:2001-09-15 Published:2001-09-15
  • Contact: Guo Dean*

摘要: 论文首次报道了利用49种微生物菌株对人参皂苷Rg1进行生物转化研究,发现小型丝状真菌黑曲霉(Aspergillus niger 3.1858)与蓝色梨头霉(Absidia coerulea 3.3538)具有转化能力。经正交试验优化转化条件,放大培养,制备得到产物MT1MT2,经化学与波谱技术鉴定,MT1MT2为同一产物即人参皂苷Rh1。运用TLCS方法探索了真菌体系中底物人参皂苷Rg1与转化产物人参皂苷Rh1的生物转化动力学曲线。

关键词: 生物转化, 人参皂苷Rg1, 人参皂苷Rh1, 微生物, 真菌

Abstract: Forty-nine microbial strains were used to screen their ability for the microbiological transforma-tion of ginsenoside Rg1. Aspergillus niger (3.1858) and Absidia coerulea (3.3538) were found to convert ginsenoside Rg1 efficiently to less polar metabolites. Preparative scale transformation with both fungi Absidia coerulea (3.3538) and Aspergillus niger (3.1858) have resulted in the production of one same metabolite (MT1). Its structure was char-acterized as 6-O-β-D-glucopyranosyl-20(S)-protopanaxatriol (Ginsenoside Rh1) on the basis of its TOF-MS and 1H, 13C NMR spectral data. The biotransformation kinetic curves for Ginsenoside Rg1 and MT1 were reported for the first time, and the biotransformation pathway was proposed.

Key words: Microbiological transformation, Microbiological transformation, Ginsenoside Rg1, Ginsenoside Rg1, Ginsenoside Rh1, Ginsenoside Rh1, Microorganism, Microorganism, Fungi, Fungi

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