Abstract: β-Damascone microcapsules were prepared by complex coacervation method with β-damascone as core material and gelatin and sodium carboxymethyl cellulose (CMC) as coating materials.Based on the results from single factor experiment,the orthogonal design was used to optimize the preparation conditions of β-damascone microcapsules.The better process conditions were determined as:gelatin and CMC mass ratio,9∶1;core and coating mass ratio,1∶1;rotation speed of the emulsification,8 500 r/min;dosage of the curing agent,0.25%;pH value,4.5-4.6;operation temperature,40 ℃.Under the aforesaid conditions,the microcapsule embedding rate achieves 97.83%±2.16%;the particle size is about 30 μm,with morphology of the microcapsules round and regular.

Key words: β-damascone, microcapsules, complex coacervation method, orthogonal test