生物技术进展 ›› 2016, Vol. 6 ›› Issue (2): 98-104.DOI: 10.3969/j.issn.2095-2341.2016.02.04

• 研究论文 • 上一篇    下一篇

黑曲霉降解人参皂苷Rb1制备稀有皂苷Compound K

高娟1,周安东2,原野1,赵天蛟1   

  1. 1.东北师范大学生命科学学院, 长春130024;
    2.东北师范大学附属中学, 长春 130024
  • 收稿日期:2015-12-15 出版日期:2016-03-25 发布日期:2016-01-06
  • 作者简介:高娟,讲师,主要从事糖类化合物生物转化研究。E-mail:gaoj199@nenu.edu.cn
  • 基金资助:

    国家自然科学基金(31400299)资助。

Enzymatic Degradation of Ginsenoside Rb1 for Preparation of Compound K by Aspergillus niger sp. J7

GAO Juan, ZHOU An-dong, YUAN Ye, ZHAO Tian- jiao   

  1. 1.School of Life Sciences, Northeast Normal
    University, Changchun 130024, China;
    2.High School Attached to Northeast Normal
    University, Changchun 130024, China
  • Received:2015-12-15 Online:2016-03-25 Published:2016-01-06

摘要: 稀有人参皂苷Compound K(C-K)具有显著的生物学活性 。从东北农耕土壤中分离出9株真菌,系统研究了其转化 人参皂苷Rb1制备C-K的能力。其中,黑曲霉Aspergillus niger sp. J7能够高效转化人参皂苷Rb1生成C-K,转化 途径为Rb1→Rd→F2→C-K。对黑曲霉J7转化Rb1制备C-K 的条件进行优化,在最优条件下,Rb1可完全转化成C-K 。将该转化体系扩大到200 mL,60 h内可将Rb1完全转化 成C-K,转化率为74.7%。黑曲霉J7为人参皂苷Rb1高效水 解为稀有人参皂苷C-K奠定了基础。

关键词: 人参皂苷, 黑曲霉, 生物转化, &beta, -葡萄糖苷酶

Abstract: Minor ginsenoside Compound K (C-K) exhibited remarkable biological activities. In this study, nine fungi were isolated from soil, and their abilities of transform ginsenoside Rb1 for preparation of C-K were studied. A highly efficient ginsenoside Rb1-hydrolyzing fungus Aspergillus niger sp. J7 was screened. The strain converted ginsenoside Rb1 to C-K with the pathway of Rb1→Rd→F2→C-K. The conversion conditions of A. niger sp. J7 was optimized. Under the optimal conditions, ginsenoside Rb1 was converted to C-K completely. The transformation system was enlarged to 200 mL, in which ginsenoside Rb1 was completely converted into C-K after 60 h and the conversion rate was 74.7%. This fungus was expected to be the basis in bioactive C-K preparation.

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