食品科学 ›› 2007, Vol. 28 ›› Issue (8): 198-201.

• 工艺技术 • 上一篇    下一篇

湿热处理玉米淀粉对酸敏感性的研究

杨波, 杨光, 刘灿召, 黄焕   

  1. 上海理工大学食品与生物技术研究所; 上海理工大学食品与生物技术研究所 上海200093; 上海200093;
  • 出版日期:2007-08-15 发布日期:2011-10-24

Effects of Heat-moisture Treatment on Acid Modified Cornstarch

 YANG  Bo, YANG  Guang, LIU  Can-Zhao, HUANG  Huan   

  1. Institute of Food and Biological Technology, University of Shanghai for Science and Technology, Shanghai 200093, China
  • Online:2007-08-15 Published:2011-10-24

摘要: 本实验以玉米淀粉为原料,用湿热处理的方法对淀粉进行改性。用均匀设计试验方法确定最佳工艺条件。结果显示:温度和时间为影响最大的因素,以盐酸水解淀粉的水解率为指标,用3mol/L的盐酸溶液50ml,在45℃下反应10h;确定最佳工艺条件为:湿度14%,温度120℃,时间4h。此处理条件的变性淀粉对盐酸水解率的最大值为14.39%。

关键词: 玉米淀粉, 湿热处理, 水解率, 均匀设计试验

Abstract: Heat-moisture treatment for cornstarch was used in this experiment. Modified cornstarches were hydrolyzed by hydrochloric acid, then percentage of hydrolysis of modified cornstarches was measured in order to get the best modified cornstarch. With uniform design, the most important influence factors in this test were choose. Results were followed: the degree of humidity 14%, the temperature 120 ℃, and time 4 h. On these conditions, the maximum hydrolysis percentage for modified cornstarch is 14.39%.

Key words: cornstarch, heat-moisture treatment, hydrolysis rate, uniform design