Preparation of Mustard Oil Microcapsules by Complex Coacervation of Gelatin and Arabic Gum

Microencapsulation of mustard oil using gelatin(GE)and arabic gum(AG)as wall materials by complex coacervation is investigated.The influence factors such as wall material concentration,GE/AG radio,core/wall radio,pH value,reaction temperature and time on the forming of microcapsule.The optimal technical parameters are:wall material concentration of 1%,GE/AG radio of 1∶1,pH 3.4,temperature of 40℃and time of 20min.The embedding rate of microcapsule products obtained under the above conditions is 92.66%.