微胶囊技术在多不饱和脂肪酸中的应用进展

Progress of application of microencapsulation technology in polyunsaturated fatty acids

多不饱和脂肪酸是人体生长和健康不可或缺的营养物质,但是这些脂肪酸容易被氧化,并且气味不佳,因此有必要通过微胶囊技术对其进行包埋来解决这些问题。本文综述了喷雾干燥法、复合凝聚法、锐孔法、冷冻干燥法在制备不饱和度高的油脂粉末中的应用,并介绍了新型壁材、玻璃态微胶囊、纳米微胶囊在多不饱和脂肪酸微胶囊化的研究进展。这些研究显示,微胶囊化多不饱和脂肪酸在食品工业上具有良好的发展前景。

Polyunsaturated fatty acids are essential nutrients for the growth and health of human. However,these fatty acids are easily to be oxidized and have a bad smell. Thus, it is necessary to solve these problems using microencapsulation embedding technology. In this paper, spray drying, complex coacervation method,sharp whole method and freeze-drying method in the preparation of highly unsaturated fat powder were reviewed, and new types of wall materials, glass microcapsules, and nano-microcapsules in polyunsaturated fatty acids microencapsulation were introduced also. The result showed that microencapsulation of polyunsaturated fatty acids in the food industry had good prospects for development.