Microencapsulation of Macadamia oil by spray drying

Abstract

The microencapsulation conditions of macadamia oil using spray drying were studied. The optimum condition for preparing emulsion using response surface methodology was studied by varying the ratio of sodium caseinate to maltodextrin, ratio of wall material to core material, and homogenizing pressure. Result showed that the appropriated conditions were sodium caseinate: maltodextrin at 1:4, wall material: core material at 60:40 and homogenizing pressure of 200 bar. The conditions of spray drying were investigated and was found that the optimum condition was the feed rate of 1.1 kg/h and inlet temperature of 167oC.