Zein-Polyglycerol Conjugates with Enhanced Water Solubility and Stabilization of High Oil Loading Emulsion

被引：30

作者：

Huang, Shuangshuang ^{[1
]}

He, Junbo ^{[1
]}

Han, Lijuan ^{[1
]}

Lin, Hong ^{[1
]}

Liu, Gang ^{[1
]}

Zhang, Weinong ^{[1
]}

机构：

[1] Wuhan Polytech Univ, Coll Food Sci & Engn, Minist Educ, Key Lab Deep Proc Major Grain & Oil, Wuhan 430023, Peoples R China

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2020年 / 68卷 / 42期

基金：

中国国家自然科学基金;

关键词：

zein; polyglycerol; water solubility; high oil loading emulsion; emulsifying capacity; HYPERBRANCHED POLYGLYCEROL; DELIVERY; PROTEIN; SHELL;

D O I：

10.1021/acs.jafc.0c04156

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

To increase the water solubility of zein as a stabilizing agent for oil-in-water (O/W) emulsions, three zeinpolyglycerol (Zein-PG) conjugates, Zein-PG-2, Zein-PG-6, and Zein-PG-10, were prepared by dehydration between zein and polyglycerol aldehydes obtained by NaIO4 oxidation of polyglycerol-2, -6, and -10 and characterized by free amine content, grafting degree, Fourier transform infrared spectroscopy, and fluorescence spectra. All conjugates dispersed in water as nanoparticles were verified by transmission electron microscopy. Conjugation with PG changed the isoelectric point of zein from 6.2 to 6.8 and to 4.0. Zein-PG-6 and Zein-PG-10 showed strong stabilization on the O/W emulsions with 18-fold loading of soybean oil on the basis of conjugate mass, displaying high oil loading capacity. Confocal laser scanning microscopy (CLSM) confirmed the O/W structure of emulsions and that the absorption of Zein-PG-10 on the oil droplet surface offered the driving force to be stable. The present Zein-PG conjugates thus produced an enticing resource for use as nanocarriers or bioemulsifiers in food or pharmaceutical industries.

引用

页码：11810 / 11816

页数：7

共 31 条

[1] Carbon nanotubes-graft-polyglycerol: Biocompatible hybrid materials for nanomedicine [J].