食品科学 ›› 2018, Vol. 39 ›› Issue (9): 82-87.doi: 10.7506/spkx1002-6630-201809013

• 食品工程 • 上一篇    下一篇

高压均质预处理对玉米淀粉阳离子化、结构和性能的影响

李贵萧1,2,代养勇1,*,侯汉学1,张 慧1,李向阳1,王文涛1,董海洲1,*,刘传富1   

  1. 1.山东农业大学食品科学与工程学院,山东省粮食加工技术工程技术研究中心,山东 泰安 271018;2.德州市陵城区食品药品监督管理局,山东 德州 253500
  • 出版日期:2018-05-15 发布日期:2018-05-15
  • 基金资助:
    国家自然科学基金面上项目(31471619);山东省“双一流”奖补资金项目(SYL2017XTTD01)

Effect of High Pressure Homogenization Pretreatment on Structure and Properties of Cationic Corn Starch

LI Guixiao1,2, DAI Yangyong1,*, HOU Hanxue1, ZHANG Hui1, LI Xiangyang1, WANG Wentao1, DONG Haizhou1,*, LIU Chuanfu1   

  1. 1. Engineering and Technology Center for Grain Processing in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China; 2. Dezhou City Food and Drug Administration of Lingcheng District, Dezhou 253500, China
  • Online:2018-05-15 Published:2018-05-15

摘要: 为探究高压均质机械力作用对淀粉化学活性的影响,本研究采用处于3 种不同机械力作用阶段的玉米淀粉 为原料,湿法制备了阳离子淀粉。通过扫描电子显微镜、激光共聚焦显微镜、偏光显微镜、X射线衍射分析、快速 黏度分析、差示扫描量热分析等手段研究了高压均质预处理对阳离子淀粉结构及性能的影响。结果表明:高压均质 预处理可破坏淀粉晶体结构,能提高淀粉化学活性。聚集阶段变化最为显著,该阶段阳离子淀粉峰值黏度、透光 率、化学活性最高,取代度和反应效率增幅分别达43.80%、43.86%。

关键词: 高压均质, 阳离子淀粉, 活化, 性能, 结构

Abstract: In order to investigate the effect of mechanical force during high pressure homogenization on the chemical reactivity of starch, we prepare cationic starch by the wet method from corn starch subjected to 1, 5 and 7 high pressure homogenization cycles (three stages of mechanical action). The structure and properties of cationic starch were examined by scanning electron microscopy, confocal laser scanning microscopy, polarizing microscopy, X-ray diffraction, rapid visco-analyser and differential scanning calorimetry. The results indicated that high pressure homogenization pretreatment destroyed the crystal structure and improved the chemical reaction activity of starch. This phenomenon was the most pronounced at the stage of aggregation and the peak viscosity, light transmittance and chemical reaction activity of cationic starch prepared at this stage were the highest. In addition, the degree of substitution and reaction efficiency were increased by 43.80% and 43.86%, respectively.

Key words: high pressure homogenization, cationic starch, activation, property, structure

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