FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (10): 196-200.

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Study on Factors of Amylase Hydrolysis Potato Starch

 ZHAO  Ying, ZHAO  Ping, LI  Hong-Yu   

  1. 1.Life Science College, Lanzhou University, Lanzhou 730070, China; 2.Processing and Preserving Research Institute, Gansu Agricultural Academy, Lanzhou 730070,China; 3.Life Science and Engineering College, Lanzhou University of Technology, Lanzhou 730000, China
  • Online:2007-10-15 Published:2011-11-22

Abstract: The paper deals with the effects of using α-amylase and β-amylase to break down potato starch with temperature and time control. Different amylases, potato starch, temperatures, and times were designed with orthogonal test. The optimum hydrolysis conditions were α-amylase 0.15%(4000 U), potato starch concentration 20%, temperature 80.0 ℃, time 13 min, for β-amylase 0.15%(50000 U), temperature 60.0 ℃, time 46 h, pH5.4.

Key words: amylase, potato starch, hydrolysis, factors