化工学报 ›› 2014, Vol. 65 ›› Issue (4): 1381-1386.DOI: 10.3969/j.issn.0438-1157.2014.04.031

• 生物化学工程与技术 • 上一篇    下一篇

玉米肽-麦芽糊精糖基化产物与α-生育酚共组装纳米粒子的制备及其性质

任晓鸣, 张晋博, 杨晓泉, 周耀民   

  1. 华南理工大学轻工与食品学院食物蛋白工程研究中心, 广东 广州 510640
  • 收稿日期:2013-08-06 修回日期:2013-11-10 出版日期:2014-04-05 发布日期:2013-11-14
  • 通讯作者: 杨晓泉
  • 作者简介:任晓鸣(1988—),女,硕士研究生。
  • 基金资助:

    国家自然科学基金项目(31130042,31371744)。

Preparation and properties of nanoparticles of zein peptide-maltodextrin conjugates co-assembled with α-tocopherol

REN Xiaoming, ZHANG Jinbo, YANG Xiaoquan, ZHOU Yaomin   

  1. Research and Development Center of Food Proteins, School of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2013-08-06 Revised:2013-11-10 Online:2014-04-05 Published:2013-11-14
  • Supported by:

    supported by the National Natural Science Foundation of China (31130042, 31371744).

摘要: 通过美拉德反应制备玉米肽-麦芽糊精糖基化产物,再通过反溶剂法制备糖基化产物与α-生育酚共组装纳米粒子,系统地研究了制备参数对于复合粒子的影响。结果表明,糖基化产物浓度、玉米肽与α-生育酚质量比、pH对于复合粒子的粒度与ζ电位有重要的影响。采用动态光散射、ζ电位观察发现,通过调节制备参数,荷载α-生育酚的玉米肽-麦芽糊精糖基化产物可以形成平均粒度为80~100 nm的纳米粒子,其表面电荷分布在-23~-32 mV之间。与玉米肽、玉米肽/麦芽糊精混合物相比,玉米肽-麦芽糊精糖基化产物对于α-生育酚具有更高的荷载效率以及更好的pH稳定性。

关键词: 玉米肽, α-生育酚, 麦芽糊精, 糖基化, 纳米粒子, 食品加工

Abstract: Zein peptide-maltodextrin (pep-MD) conjugates were prepared by the Maillard reaction. Pep-MD conjugates co-assembled with α-tocopherol (TOC) to create composite nanoparticles by the desolvation method. The effect of fabrication parameters on nanoparticles was investigated. The size and ζ-potential of nanoparticles were affected by concentration of conjugates, ratio of zein peptide and TOC, and pH. Nanoparticles could be controlled between 80—100 nm with negative surface charge (-23 to -32 mV) through adjusting fabrication parameters, as evidenced by dynamic light scattering and ζ-potential. Compared with zein peptide and zein peptide/maltodextrin (pep/MD) mixtures, pep-MD conjugates provided better loading efficiency of TOC and protection against the change of pH.

Key words: zein peptide, α-tocopherol, maltodextrin, conjugate, nanoparticle, food processing

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