食品科学 ›› 2006, Vol. 27 ›› Issue (10): 233-235.

• 工艺技术 • 上一篇    下一篇

固定化酶制备麦胚蛋白粉操作单元研究

 吴定,  刘常金,  刘长鹏,  高瑀珑,  鞠兴荣,  周建新,  姚明兰   

  1. 南京财经大学食品科学与工程学院江苏省粮油品质监控与深加工重点实验室; 天津科技大学生物工程学院;
  • 出版日期:2006-10-15 发布日期:2011-11-16

Operation Unit of Wheat Germ Protein with Immobilized α-amylase

WU  Ding,   Liu-Chang-Jin,   Liu-Chang-Peng,   Gao-Yu-Long,   Ju-Xing-Rong,   Zhou-Jian-Xin,   Yao-Ming-Lan   

  1. 1.School of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210003, China;2.School of Biotechnology, Tianjin University of Science and Technology, Tianjin 300222, China
  • Online:2006-10-15 Published:2011-11-16

摘要:  中空球形壳聚糖经3%戊二醛活化后与真菌α-淀粉酶在室温反应2h,冰箱静置过夜,制备固定化α-淀粉酶。固定化α-淀粉酶最适催化温度为60℃,最适pH值为5.0,相对酶活力为7.4%。固定化α-淀粉酶连续使用15d,酶活力未下降,生产麦胚蛋白质的纯度达89%,得率为79%。

关键词: 麦胚蛋白质, 固定化&alpha, -淀粉酶, 生产工艺

Abstract: The hollow globular of chitosan was activated by 3% gluluraldehyde, then immobilized α-amylase for 2 hours at 25℃ and 4℃ for 12 hours. The immobilized α-amylase have the optimum reactive temperature of 60℃ at pH 5.0, and with reactive activity of enzyme of 7.4%. The immobilized α-amylase have high activity of enzyme after used 15 days. The purity of wheat germ protein is 89%, and getting ratio of 79% with immobilized α-amylase.

Key words: wheat germ protein; immobilized &alpha, -amylase; producing technique;