Study of the Process of Complex Coacervation Encapsulation for Oil Core Materials

The process of complex coacervation encapsulation for oil core materials was studied.Bean oil was selected as the core material and the gelatin and Arabic gum as coating materials.The factors that affect the process,such as pH value,reaction temperature,reaction time,reaction concentration and stirring speed,were investigated.The results showed that the optimal conditions were as follows: emulsifying 2% of Arabic gum and 2% of gelatin, condensing at pH 4.0～4.5 for 15～20 min,stirring with a speed of 1500 r/min,and solidifying at 10 ℃ for 60 min.The stirring speed exerted an important influence on the appearance and particle size distribution of the products.