文献类型：期刊文献

英文题名：Encapsulation and binding properties of curcumin in zein particles stabilized by Tween 20

作者：Wang, Xiaoyong[1];Huang, Huamin[1];Chu, Xiangyu[1];Han, Yongqi[1];Li, Mengli[1];Li, Gaoyang[1];Liu, Xingyu[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：577

起止页码：274

外文期刊名：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录：;EI(收录号：20192407026060);WOS:【SCI-EXPANDED(收录号:WOS:000477008000033)】；

基金：We acknowledge the National Natural Science Foundation of China (Grant 21573071).

语种：英文

外文关键词：Curcumin; Zein; Particles; Stability; DPPH; Fluorescence

摘要：This work studies the encapsulation and binding properties of curcumin in zein particles stabilized by Tween 20. The addition of Tween 20 is found to increase the encapsulation efficiency, stability, and radical scavenging ability of curcumin. As Tween 20 concentration (C-Tween 20) increases from 0 to 0.2 g/L, curcumin encapsulated in zein particles exhibits more pronounced increase in the absorption intensity than that at C-Tween 20 = 0.2-1.8 g/L, which is consistent with the changes of fluorescence intensity and anisotropy of curcumin. The encapsulation and spectroscopic properties of curcumin are explained by the bindings of curcumin in the hydrophobic cavities and the micellar like Tween 20 aggregates in zein particles, which are closely dependent on Tween 20 concentration. The binding constant results further suggest stronger binding affinity between curcumin and zein particles at C-Tween 20 above 0.2 g/L.