食品科学 ›› 2007, Vol. 28 ›› Issue (1): 39-42.

• 基础研究 • 上一篇    下一篇

羧甲基葡甘聚糖-大豆分离蛋白复合物膜及性能研究

 詹小卉, 张小菊, 李万芬, 陈国锋, 黄静, 张声华, 姜发堂   

  1. 湖北工业大学生物工程学院; 湖北轻工职业技术学院信息工程系; 华中农业大学食品科技学院; 湖北工业大学生物工程学院 湖北武汉430068; 湖北武汉430068华中科技大学武昌分校; 湖北武汉430064; 湖北武汉430068; 湖北武汉430070; 湖北武汉430068华中农业大学食品科技学院;
  • 出版日期:2007-01-15 发布日期:2011-12-31

Study on Properties and Films of Carboxyl Methyl Glucomannan-Isolated Soy Protein Conjugate

ZHAN  Xiao-Hui, ZHANG  Xiao-Ju, LI  Wan-Fen, CHEN  Guo-Feng, HUANG  Jing, ZHANG  Sheng-Hua, JIANG  Fa-Tang   

  1. 1.College of Biological Engineering, Hubei University of Technology, Wuhan 430068, China; 2.Wuchang Branch School, Huazhong University of Science and Technology, Wuhan 430064, China; 3.College of Information Engineering, Hubei Light Industry Technology Institute, Wuhan 430070, China; 4.College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
  • Online:2007-01-15 Published:2011-12-31

摘要: 以溶液共混法制备羧甲基葡甘聚糖-大豆分离蛋白复合物。用红外光谱、紫外分光光度计、扫描电镜、玻璃化温度测定表征其结构,测试复合物膜的力学、抗潮、阻气等性能。结果表明在羧甲基葡甘聚糖与大豆分离蛋白质量比为1.5:1,pH10,6ml/100g干粉重的三氯氧磷作用下,40℃水浴反应3h,羧甲基葡甘聚糖与大豆分离蛋白有良好的相互作用,复合物膜的力学性能、抗潮性能及阻气性能均有明显提高,其中拉伸强度较羧甲基葡甘聚糖提高了117.6%,吸湿增重较羧甲基葡甘聚糖下降了19.02%,透湿系数下降了40.97%。

关键词: 羧甲基葡甘聚糖, 大豆分离蛋白, 复合物, 膜性能

Abstract: Carboxyl methyl glucomannan konjac (CMKGM)-soy protein isolated (SPI) conjugate were prepared by solution method and characterized by FT-IR, UV Scan, SEM and Tg. The properties of the conjugate film were tested. The results indicated that there is strong interaction between CMKGM and SPI when the conditions are as follow: m(carboxyl methyl glucomannan): m(SPI)=1.5:1, pH10, 6ml phosphorus oxychloride/100g dry powder, at 40℃ and 3 hours reaction. Tensile strength, moisture resistance and gas barrier of the blend film are improved markedly. The tensile strength increases 117.6% compared to CMKGM. The moisture absorption decreases 19.02% compared to CMKGM. The humidity-penetrate coefficient decreases 40.97% to C M K G M .

Key words: carboxyl methyl glucomannan, soy protein isolated, conjugate, film properties