食品科学 ›› 2007, Vol. 28 ›› Issue (4): 237-240.

• 生物工程 • 上一篇    下一篇

微波-酶法制备RS3型玉米抗性淀粉工艺参数优化研究

 张华东, 张淼, 沈晓萍, 卢晓黎   

  1. 四川大学食品工程系; 四川大学食品工程系 四川 成都 610065; 四川 成都 610065;
  • 出版日期:2007-04-15 发布日期:2011-12-31

Optimization of Parameters for Preparation of Corn Retrograded Starch by Microwave-Enzyme Method

 ZHANG  Hua-Dong, ZHANG  Miao, SHEN  Xiao-Ping, LU  Xiao-Li   

  1. Department of Food Engineering,Sichuan University,Chengdu 610065,China
  • Online:2007-04-15 Published:2011-12-31

摘要: 运用响应面法,对微波-酶法制备RS3型玉米抗性淀粉的工艺参数进行优化。α-淀粉酶酶解的优化工艺参数为:液料比4:1,酶解温度85℃,酶解时间10min,酶浓度1.68U/g淀粉:微波糊化的优化工艺参数为:功率1.26kW,加热温度92℃,加热时间1min:普鲁兰酶脱支优化工艺参数为:酶浓度4.13 NPUN/g淀粉,酶解温度53.31℃,酶解时间3.26h。按以上工艺参数制备的抗性淀粉得率为13.45%。

关键词: 抗性淀粉, 微波-酶法, 响应面法, Box-Behnken实验设计

Abstract: The processing parameters of microwave-enzyme method,used to produce corn retrograded starch,were optimized by respond surface methodology.The optirnal hydrolyzing parameters by a-amylase are 85℃for 10 min,the ratio of liquid to solid 4:1,α-amylase 1.68 U/g starch;the optimal pasting parameters with microwave are 1.26 kW 92℃for 1min;the optimal dealing parameters with pullulanase are 53.31℃for 3.26 h,pullulanase 4.13 NPUN/g starch.The productivity of resistant starch reaches 13.45% with the optimal processing method.

Key words: resistant starch, microwave-enzyme method, response surface methodology(RSM), Box-Behnken design