作者
Jia Yang, Chaoying Qiu, Guanghui Li, Wan Jun Lee, Chin Ping Tan, Oi Ming Lai, Yong Wang
发表日期
2020/10/15
期刊
Food chemistry
卷号
327
页码范围
127014
出版商
Elsevier
简介
The influence of diacylglycerol (DAG) combined with polyglycerol polyricinoleate (PGPR) on the stability of water-in-oil (W/O) emulsions containing hydrogenated palm oil (HPO) was studied. Polarized light microscope revealed that DAG promoted HPO to crystallize at the water–oil interface, providing the combination of Pickering and network stabilization effects. It was proposed that the molecular compatibility of fatty acids in DAG with HPO accounted for the promotional effect. The interfacial crystallization of DAG together with the surface activity of PGPR led to the formation of emulsions with uniform small droplets and high freeze–thaw stability. Further exploration of physical properties indicated that the combination of DAG and PGPR dramatically improved the emulsion’s viscoelasticity and obtained a larger deformation yield. Water droplets in DAG-based emulsions acted as active fillers to improve the network …
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