麦芽糊精
乳状液
复合数
材料科学
喷雾干燥
扫描电子显微镜
微观结构
傅里叶变换红外光谱
粒径
化学工程
大豆蛋白
化学
粒子(生态学)
食品科学
动力学
复合材料
工程类
地质学
物理
海洋学
量子力学
作者
Tong Wang,Kuiren Chen,Xingzhen Zhang,Yingjie Yu,Dianyu Yu,Lianzhou Jiang,Liqi Wang
标识
DOI:10.1016/j.ultsonch.2021.105700
摘要
In this study, microcapsules were prepared by spray drying and embedding hemp seed oil (HSO) with soy protein isolate (SPI) and maltodextrin (MD) as wall materials. The effect of ultrasonic power on the microstructure and characteristics of the composite emulsion and microcapsules was studied. Studies have shown that ultrasonic power has a significant impact on the stability of composite emulsions. The particle size of the composite emulsion after 450 W ultrasonic treatment was significantly lower than the particle size of the emulsion without the ultrasonic treatment. Through fluorescence microscopy observation, HSO was found to be successfully embedded in the wall materials to form an oil/water (O/W) composite emulsion. The spray-dried microcapsules showed a smooth spherical structure through scanning electron microscopy (SEM), and the particle size was 10.7 μm at 450 W. Fourier transform infrared (FTIR) spectroscopy analysis found that ultrasonic treatment would increase the degree of covalent bonding of the SPI-MD complex to a certain extent, thereby improving the stability and embedding effect of the microcapsules. Finally, oxidation kinetics models of HSO and HSO microcapsules were constructed and verified. The zero-order model of HSO microcapsules was found to have a higher degree of fit; after verification, the model can better reflect the quality changes of HSO microcapsules during storage.
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