Effect of fluidized bed coating granulation with gelatin on the release characteristics of mint flavor powder

Effect of properties of gelatin and its emulsion as coating agents on release characteristics of mint flavor powder had been studied on this paper.Mint flavor powder was coated using gelatin and its emulsion as coating agents by the fluidized bed, and then encapsulation efficiency and release characteristics were measured by gas chromatography as a measure f coating quality indicators. The results showed that the emulsion of 10% gelatin, 20% oil content based on gelatin mass achieve a higher quality of the coated granules which had 90.44% encapsulation efficiency and reached 60% release rate in 11min.The above results showed that it was possible for fluidized bed coating operation to improve the property of sustain release by coating the gelatin emulsion.