高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (11): 1150.

• 研究简报 • 上一篇    下一篇

扁桃甙水解和极谱行为的研究

李沧, 袁倬斌   

  1. 中国科技大学研究生院, 北京
  • 收稿日期:1988-01-20 出版日期:1989-11-24 发布日期:1989-11-24
  • 通讯作者: 袁倬斌
  • 基金资助:

    国家自然科学基金

Studies on Hydrolysis and Polarographic Behavior of Amygdalin

Li Cang, Yuan Zhoubin   

  1. Graduate School of Academia Sinica, Beijing
  • Received:1988-01-20 Online:1989-11-24 Published:1989-11-24

关键词: 扁桃甙, 水解, 极谱法

Abstract: Amygdalin is a non-active material.The polarographic study is based on the β-glucosidase-catalyzed hydrolysis of amygdalin to benzaldehyde.In a basic solution of injectio natrii chloridi the hy-drolysate of amygdalin exhibited a well defined reduction peak in a 2.5th differential polarogram, the peak potential was-1.340V (Vs.Ag/AgCl).The current was proportional to amygdalin concentration in the range of 5.9× 10-7 to 1.4× 10-4mol/L.With increasing pHin the basic solution, peak potential negatively shifted.Scanning rate, surfactant temperature and cyclic polarogram show that the reduction wave is a irreversible process controlled by difusion.Specific activity of β-glucosidase was first determined by polarography.The effect of various enzyme concentration on peak current was observed.

Key words: Amygdalin, Hydrolysis, Polarography

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