食品科学 ›› 2011, Vol. 32 ›› Issue (1 ): 52-55.doi: 10.7506/spkx1002-6630-201101013

• 基础研究 • 上一篇    下一篇

辐照对大豆分离蛋白功能特性影响

莫 耽,黄行健,段雅庆,潘思轶*   

  1.  华中农业大学食品科技学院
  • 收稿日期:2010-03-12 出版日期:2011-01-15 发布日期:2010-12-28
  • 通讯作者: 潘思轶 E-mail:pansiyi@mail.huau.edu.cn
  • 基金资助:

    湖北省新世纪高层人才工程入选人员科研择优资助项目

Effect of Irradiation on Functional Properties of Soybean Protein Isolate

MO Dan,HUANG Xing-jian,DUAN Ya-qing,PAN Si-yi*   

  1. (College of Food Science and Technology, Huazhong Agricultural University,Wuhan 430070, China)
  • Received:2010-03-12 Online:2011-01-15 Published:2010-12-28
  • Contact: PAN Si-yi* E-mail:pansiyi@mail.huau.edu.cn

摘要:

采用大豆分离蛋白为原料,经辐照处理达到对大豆分离蛋白物理改性的目的。测定吸水、吸油特性和乳化特性的变化,并分析吸水、吸油特性和乳化特性之间的相关性。结果表明:经辐射处理后,大豆分离蛋白吸水性变化不明显;当辐射剂量为4kGy 时,大豆分离蛋白吸油性及乳化性分别为最低值和最高值,吸油性的降低及辐射剂量的增加分别对大豆分离蛋白乳化性及乳化稳定性的提高有促进效果。

关键词: 大豆分离蛋白, 辐照, 功能特性, 相关性

Abstract:

Soy bean isolate (SPI) was subjected to irradiation treatment for physical modification in the present study. Changes in water and oil binding capacity and emulsifying properties were measured before and after irradiation treatment. Meanwhile, Statistical correlations between water and oil binding capacity and emulsifying properties were analyzed. No obvious change inwater binding capacity was observed after irradiation treatment. Irradiation treatment at a dose of 4 kGy resulted in the lowest oil binding capacity and the highest emulsifying capacity. Moreover, the emulsifying capacity and emulsion stability of SPI could be both increased by decreasing oil binding capacity and increasing irradiation dose.

Key words: Soy protein isolate, Irradiation, Functional properties, Correlation

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