Research Progress in Preparation and Application of Emulsion Microgel Particle

Lipophile active molecules such as vitamins, fatty acids and essential oils are sensitive to oxygen, heat and light, and are easy to be oxidized and degraded during food process or physiological transportation, which limit their application in food industry. Among the technologies that can be used to deliver lipophilic molecules, emulsion microgel particles, relatively new soft solid particle delivery systems, have attracted increasing attention due to their discrete size and smart release characteristics. Encapsulation of lipophilic active molecules by emulsion microgel particles can significantly improve the physicochemical stability of lipophilic molecules. Moreover, emulsion microgel particles can release effectively the lipophilic active molecules at targeted locations to improve their bioavailability. In this paper, the domestic and foreign literatures about emulsion microgel particle delivery carriers are summarized. The preparation, controlled release property and main applications of emulsion microgel particle delivery carriers are emphatically discussed. At last, the current problems and future development of emulsion microgel particle delivery systems of lipophilic molecules are analyzed and prospected, aiming to provide reference for the application of emulsion microgel particle in food industry.