乳状液
黄原胶
化学工程
聚合物
化学
Zeta电位
流变学
扫描电子显微镜
傅里叶变换红外光谱
材料科学
色谱法
有机化学
复合材料
工程类
纳米颗粒
作者
Chunhuan Liu,Yunxing Li,Rong Liang,Hong Sun,Lei Wu,Cheng Yang,Yuanfa Liu
出处
期刊:Food Chemistry
[Elsevier BV]
日期:2022-08-18
卷期号:400: 133957-133957
被引量:35
标识
DOI:10.1016/j.foodchem.2022.133957
摘要
Emulsion gels with the mixtures of low-molecular-weight emulsifier (LME) and polymer have attracted much attention in food; however, the LME-polymer interactions in emulsion system are complex and unclear. Here, the interactions between SSL and xanthan in emulsions and the mechanisms of stabilizing emulsions were investigated by using tensiometry, zeta potential, Fourier transform infrared spectroscopy (FTIR), confocal laser scanning microscopy (CLSM), cryo-scanning electron microscopy (cryo-SEM) and rheology. SSL was more efficiently adsorbed on the oil-water interface than xanthan. Interestingly, the honeycomb structure was formed in emulsion gels, which firmly immobilized oil droplets. Furthermore, electrostatic repulsion and hydrophobic interactions between xanthan and SSL facilitated the efficient bonding at interface and in bulk. Both linear and nonlinear rheology strongly supported the fact that the interactions between xanthan and SSL enhanced gel-like viscoelastic structure of emulsion gels. This structure endows excellent stability of emulsion gels under high temperature storage, sealed conditions and pH change.
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