食品科学 ›› 2010, Vol. 31 ›› Issue (6): 118-121.doi: 10.7506/spkx1002-6630-201006026

• 工艺技术 • 上一篇    下一篇

微波法制备交联玉米淀粉工艺

赵 晔1,张焕容2,彭何花1,刘 雄1,*   

  1. 1.西南大学食品科学学院 2.西南民族大学生命科学与技术学院
  • 收稿日期:2009-06-12 出版日期:2010-03-15 发布日期:2010-12-29
  • 通讯作者: 刘雄 E-mail:liuxiong848@hotmail.com

Preparation of Cross-linked Corn Starch under Microwave Irradiation

ZHAO Ye1,ZHANG Huan-rong2,PENG He-hua1,LIU Xiong1,*   

  1. 1. College of Food Science, Southwest University, Chongqing 400715, China ;
    2. College of Life Science and Technology, Southwest University for Nationalities, Chengdu 610041, China
  • Received:2009-06-12 Online:2010-03-15 Published:2010-12-29
  • Contact: LIU Xiong1,* E-mail:liuxiong848@hotmail.com

摘要:

为了提高交联淀粉的生产效率,选用玉米淀粉为原料,以三偏磷酸钠为交联剂,研究反应的pH 值、交联剂的用量、微波加热功率和加热时间4 个因素对微波干法制备交联淀粉工艺的影响,通过单因素和正交试验,获得微波干法制备交联玉米淀粉的最佳工艺参数:pH10.5、三偏磷酸钠用量为淀粉质量的2.5%、微波功率350W、时间5min。微波加热技术应用在交联淀粉制备中,大大缩短了反应时间,对工业干法制备交联淀粉具有重要意义。

关键词: 玉米淀粉, 干法, 交联淀粉, 微波

Abstract:

Sodium tripolyphosphate was used as cross-linking reagent to prepare cross-linked corn starch under microwave irradiation. The effects of preparation process parameters such as pH, sodium tripolyphosphate amount and microwave power and irradiation time on sedimentation volume of cross-linked corn starch were investigated by single factor and orthogonal array methods. Results showed that the optimal values of these parameters for reaching the highest sedimentation volume of rosslinked corn starch were pH 10.5, sodium tripolyphosphate amount accounting for corn starch 2.5%, and microwave power 350 W for an irradiation duration of 5 min. Our investigation demonstrates that time consumption for cross-linking reaction of corn starch is largely shortened by using microwave irradiation technique. Therefore, this technique has a promising potential for industrial dry preparation of cross-linked corn starch

Key words: corn starch, dry preparation, cross-linked starch, microwave irradiation

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