食品科学 ›› 2018, Vol. 39 ›› Issue (10): 35-39.doi: 10.7506/spkx1002-6630-201810006

• 食品化学 • 上一篇    下一篇

乳清分离蛋白-阿拉伯胶分子内复合物制备共轭亚油酸微球及其稳定性分析

姚晓琳1,2,3,陈玉1,舒蒙1,张琨3,姜发堂1   

  1. (1.华中科技大学同济医学院公共卫生学院,湖北?武汉 430030;2.湖北工业大学生物工程与食品学院,湖北?武汉 430068;3.福格森(武汉)生物科技股份有限公司,湖北?武汉 430056)
  • 出版日期:2018-05-25 发布日期:2018-05-15
  • 基金资助:
    国家自然科学基金面上项目(31470096);中国博士后科学基金项目(2017M612464)

Preparation of Stable Conjugated Linoleic Acid Microspheres Using Whey Protein Isolate-Gum Arabic Complex

YAO Xiaolin1,2,3, CHEN Yu1, SHU Meng1, ZHANG Kun3, JIANG Fatang1   

  1. (1. School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; 2. School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China; 3. Ferguson (Wuhan) Biotechnologies Co. Ltd., Wuhan 430056, China)
  • Online:2018-05-25 Published:2018-05-15

摘要: 以乳清分离蛋白(whey protein isolation,WPI)-阿拉伯胶(gum arabic,GA)分子内复合物为乳化剂,采用乳化-溶剂挥发法制备共轭亚油酸(conjugated linoleic acid,CLA)微球。结果表明,溶剂挥发使CLA微球界面上的WPI-GA分子内复合物发生界面聚集,CLA微球界面发生塌陷皱缩,界面层变厚,提高了WPI-GA分子内复合物的乳化稳定性,可有效防止微球聚集和CLA溢出。当WPI-GA分子内复合物质量分数大于1%时,CLA微球具有良好的物理稳定性、冻干复溶性,呈现出高包封率和胃肠缓释性能。

关键词: 乳清分离蛋白-阿拉伯胶复合物, 共轭亚油酸, 乳化稳定性, 界面, 胃肠输送

Abstract: In this paper, conjugated linoleic acid (CLA) microspheres stabilized with whey protein isolate (WPI)-gum arabic (GA) complex (WPI-GA ISCs) were prepared by the emulsification solvent evaporation method. The results showed that the solvent evaporation resulted in aggregation of WPI-GA complex and consequently shrinkage and collapse of the WPI-GA interface, contributing to the thicker layer. The emulsifying stability of WPI-GA ISCs was improved, thereby preventing particle aggregation and CLA leakage. When the concentration of WPI-GA ISCs was higher than 1%, the CLA microspheres had good physical stability and resolubility after freeze-drying with high efficiency of encapsulation and delivery in the gastrointestinal tract.

Key words: whey protein isolate (WPI)-gum arabic (GA) complex, emulsifying stability, conjugated linoleic acid, interface, gastrointestinal delivery

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