β-谷甾醇微胶囊工艺优化及抗油脂氧化研究  

Production Optimization of β-Sitosterol Microcapsules and Their Protective Effect against Lipid Oxidation

作　　者：高丽[1] 傅虹飞[1] 崔芳[1] 卢琪[1] 潘思轶[1] 

机构地区：[1]华中农业大学食品科学技术学院,湖北武汉430070

出　　处：《食品科学》2010年第12期28-32,共5页Food Science

基　　金：国家"863"计划项目(2006AA10Z330)

摘　　要：以β-环糊精为壁材制备β-谷甾醇微胶囊,通过正交试验研究微胶囊化最佳工艺条件,比较不同抗氧化剂和微胶囊化前后甾醇对猪油的抗氧化作用。结果表明,β-环糊精制备β-谷甾醇微胶囊最佳工艺条件是加水量60mL、搅拌温度50℃、搅拌时间50min、β-谷甾醇体积与β-环糊精质量比为1:10(mL/g),在此条件下包埋率为87.98%。微胶囊β-谷甾醇对猪油具有较强的抗氧化能力,其抗氧化效果优于未包埋的β-谷甾醇和VE;随着甾醇添加量的增加,抗氧化能力增强。β-Sitosterol has numerous biological functions such as antioxidation and so on.β-Cyclodextrin（β-CD） was taken as wall materia1 to prepare β-sitosterol microcapsules with better antioxidant effect.The preparation of β-sitosterol microcapsules was optimized using single factor and orthogonal array design methods,followed by a comparison of protective effect against lard oxidation with unmicroencapsulated β-sitosterol and vitamin E.The results showed that the optimal conditions for β-sitosterol microencapsulation were determined to be：water amount 60 mL,temperature 50 ℃,length of stirring time 50 min and ratio of 0.05 g/mL ethyl acetate solution of β-sitosterol to β-CD 1：10（mL/g）.Under these conditions,the embedding ratio of β-sitosterol was 87.98%.β-Sitosterol microcapsules could significantly protect lard from oxidation in a dosedependent way and was superior to unmicroencapsulated β-sitosterol and vitamin E.

关 键 词：Β-谷甾醇 Β-环糊精 微胶囊化 抗氧化剂 

分 类 号：O629.21[理学—有机化学] TS201.1[理学—化学]