天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (9): 1488-1491.

• 开发研究 • 上一篇    下一篇

采用β-葡萄糖苷酶两相催化法水解栀子苷的研究

朱羽尧,钱 骅,陈 斌,黄晓德,赵伯涛*   

  1. 南京野生植物综合利用研究院,南京 210042
  • 出版日期:2014-09-30 发布日期:2014-11-02

Hydrolysis of Geniposide by β-Glucosidase in a Two Phase Solvent System

ZHU Yu-yao, QIAN Hua, CHEN Bin, HUANG Xiao-de, ZHAO Bo-tao*   

  1. Nanjing Research Institute for Comprehensive Utilization of Wild Plants, Nanjing 210042 ,China
  • Online:2014-09-30 Published:2014-11-02

摘要: 本研究探索采用有机溶剂/水两相系统作为反应体系来进行栀子苷的酶解反应。以栀子苷和京尼平在水相溶剂中的分配系数作为考察指标,从4种有机溶剂/水两相系统中筛选适合采用两相催化反应体系水解栀子苷的两相溶剂系统。经筛选发现,正丁醇/水两相系统为最佳反应系统,其中栀子苷在水相中的分配比为74.2%,而京尼平仅为22.1%。以正丁醇/水两相系统作为的反应体系,采用β-葡萄糖苷酶催化栀子苷水解,酶解条件为反应温度为50 ℃,pH为5.0,转速为180 rpm,并采用HPLC-UV对反应过程进行检测。栀子苷转化率在反应10 h后达到86.6%。

关键词: 两相催化, 栀子苷, 京尼平, &beta, -葡萄糖苷酶, 生物催化

Abstract: In this research, an organic solvent/water two-phase solvent system was used in catalysis of geniposide. Comparing with other two-phase systems, n-butanol/water system was screened as the optimal system for its best distribution of geniposide (74.2%) and genipin (22.1%) in the water phase. According to this two phase solvent system, the product genipin would transfer from aqueous phase to n-butanol phase immediately. Under the optimal conditions of 50 ℃, pH 5.0 and 180 rpm, the conversion rate of geniposide at 10 h was determined to be 86.6% by HPLC-UV.

Key words: biphasic catalysis, geniposide, genipin, &beta, -glucosidase, biocatalysis

中图分类号: 

Q814.9