食品科学 ›› 2009, Vol. 30 ›› Issue (13): 77-80.doi: 10.7506/spkx1002-6630-200913017

• 基础研究 • 上一篇    下一篇

湿热处理对玉米淀粉性质的影响

汪树生1,王 强2,苏玉春1,*   

  1. 1.吉林农业大学生命科学学院 2.吉林省生物研究所
  • 收稿日期:2008-10-24 修回日期:2009-01-15 出版日期:2009-07-01 发布日期:2010-12-29
  • 通讯作者: 汪树生 E-mail:walter1975@126.com

Effects of Heat-moisture Treatment on Physico-chemical Properties of Corn Starch

WANG Shu-sheng1,WANG Qiang2,SU Yu-chun1,*   

  1. 1.College of Life Science, Jilin Agricultural University, Changchun 130118, China;
    2. Biological Institute of Jilin Province, Changchun 130012, China
  • Received:2008-10-24 Revised:2009-01-15 Online:2009-07-01 Published:2010-12-29
  • Contact: WANG Shu-sheng E-mail:walter1975@126.com

摘要:

利用烘箱和高压灭菌锅对水分含量分别为10%、18%、25%、30% 的玉米淀粉在121℃处理5h,研究淀粉性质发生改变的情况。实验结果表明,玉米淀粉经湿热处理后,淀粉颗粒中心出现凹坑,颗粒结晶程度增加,淀粉的糊化温度上升,糊液黏度降低,在相同的处理条件下,利用高压灭菌锅处理对淀粉的性质影响更为显著。湿热处理对淀粉的性质产生明显影响。

关键词: 玉米淀粉, 湿热处理, 性质

Abstract:

This study investigated the property changes of corn starches containing 10%, 18%, 25% and 30% moisture before and after being treated by oven and high-pressure sterilizer at 121 ℃ for 5 h. The results indicated that after heat-moisture treatment, pits appeared in the center of starch particles, the crystallization degree of particles increased, the gelatinization temperature rose, and the paste viscosity decreased. Under the same conditions, the high-pressure sterilizer treatment exhibited more significant effects on starch properties than the oven treatment. Altogether, the heat-moisture treatment can obviously affect the properties of corn starch.

Key words: corn starch, heat-moisture treatment, properties

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