Study on Preparation and Antioxidant Activity of Fat-Soluble Rosemary Extract Microcapsules
To study the preparation technology of fat-soluble rosemary extract microcapsules,the effects of core wall ratio,oscillation time and oscillation temperature on the embedding rate of microcapsules were investigated by using hydroxypropyl-β-ring paste(HP-β-CD)as wall material and fat-soluble rosemary extract as core material by molecular embedding method.The results showed that the maximum embedding rate was 97.48％,and the microcapsule load was 7.5％,when the ratio of fat-soluble rosemary extract and HP-β-CD was 1∶13,the oscillation time was 60 min,and the oscillation temperature was 50 ℃.The antioxidant capacity of fat-soluble rosemary extract microcapsules was significantly higher than that of fat-soluble rosemary extract(P＜0.05).The microcapsule had a load capacity of 7.5％.The optimum process parameters obtained by orthogonal test had the advantages of high embedding rate and good slow-release performance,which provided a basis for the microencapsulation of natural antioxidants.
NETL
NSTL
万方数据
维普
