期刊
FOOD REVIEWS INTERNATIONAL
卷 39, 期 5, 页码 2594-2634出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/87559129.2021.1963978
关键词
microencapsulation; bioactive compounds; spray drying; freeze-drying; fluidized bed coating; extrusion; supercritical fluids; electrospinning
Microencapsulation is an effective method for incorporating environmentally sensitive bioactive compounds into small capsules to enhance stability and bioavailability. This article provides a systematic review of state-of-the-art microencapsulation methods for bioactive compounds, discussing the differences between two types of microparticles and comparing the physicochemical properties produced by six microencapsulation techniques.
Microencapsulation is an effective method to incorporate environmentally sensitive bioactive compounds into small capsules to increase stability and bioavailability. The morphological properties, microencapsulation efficiency and release kinetics are important features of final microcapsules. A systematical review of state-of-the-art microencapsulation methods of bioactive compounds is necessary for the food industry to compare the strengths and weaknesses of technologies, and it can enlighten future researchers to explore a new and promising approach in microencapsulating bioactive compounds. This article discussed the differences in the structures and release kinetics between two types of microparticles (reservoir-system and matrix-system), collected the information of bioactive compounds and compared the physicochemical properties of microparticles produced by six microencapsulation methods (spray drying, freeze-drying, fluidized bed coating, extrusion, supercritical fluids, and electrospinning). Main factors including microencapsulation techniques, working conditions, wall materials and the interaction between the wall and bioactive compounds should be noticed by researchers to produce microparticles with desirable characteristics.
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