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영어

Microencapsulation of pine flavors was investigated to determine the optimum wall material and spray drying condition. -Cyclodextrin, maltodextrin, and a 3:1 mixture of maltodextrin and gum arabic were evaluated as wall materials. The latter mixture was determined to be the best wall material based on dispersion capacity and flavor yield. Spray drying effectiveness was evaluated using a 33 fraction factorial design and statistical analysis. The optimum operation condition was an inlet air temperature of 175℃, inlet airflow rate of 0.65 m3/min and atomizing pressure of 180 kPa, which resulted in a 93% flavor yield. The best particle shape observed by SEM was a round globular shape obtained under the above spray drying condition, whereas lower temperatures and higher inlet airflow rates resulted in initial and full collapses, respectively. The round globular shapes remained stable for at least one month.