FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (5): 190-194.

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Study on Hydrolysis Kinetics Rice Dregs with Alcalase 2.4L FG

 LI  Ji-Hua, ZHENG  Wei-Wan, SU  Bing-Xia, ZHANG  Bin   

  1. Key Laboratory of Food Science,Ministry of Education,Nanchang University,Nanchang 330047,China
  • Online:2007-05-15 Published:2011-12-31

Abstract: This paper discussed the hydrolysis kinetics on rice dregs with Alcalase 2.4L FG by pH-stat method:(1)The factors of reaction temperature,enzyme concentration,substrate concentration,pH value and reaction time were studied.(2) The maximum velocity and instant Km are determined by probing into the relation of the substrate concentration and reaction velocity:Km=0.6598mol/L,Vmax=0.00351mol/min·L.(3)Kinetics characteristics during the initial step of the enzymatic hydrolysis were discussed.

Key words: rice dregs, protein, enzymatic hydrolysis, kinetics