Initial approach of the influential factors about microencapsulation to supercritical residue
The various factors that had effects on the microencapsulation of propolis including proportion of wall-material,proportion of core-material,inlet concentration of emulsion were studied by means of measuring viscosity and stability.The investigation supply a foundation for the research of microencapsulized propolis products and the reuse of supercritical residue.The results indicated that: Proportion of core-material had no significant influence to viscosity but proportion of wall-material,using amount of stabilizing agent and concentration of emulsion had significant influence to viscosity.Using amount of stabilizing and using no stabilizing had significant difference.Using amount of stabilizing and inlet concentration of emulsion roughly had the same change tendency to stability,that is rise ahead,when achieve to the peak the value descend later.The intial prescription of supercritical propolis was: propolis/soybean oil=1:3,converted starch/maltodextrin=1:2,stabilizing agent 7.5 g/L,inlet concentration 30%.