Study on the preparation method of citrus peels essential oil microcapsules
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摘要: 以椪柑皮精油为芯材,β-环糊精为壁材,综合考察了壁芯比、包埋温度、乙醇与精油体积比、包埋时间、β-环糊精与加水量比等单因素对微胶囊包埋效果的影响,并用响应面法对工艺条件进行了优化。确定了最佳工艺条件:壁芯比5.8∶1(g/mL),包埋温度52℃,乙醇与精油体积比19∶1,包合时间2h,加水量与β-环糊精比为8∶1(mL/g),此条件下制备的微胶囊包埋率达65.97%,包埋得率达90.26%。Abstract: After the single factor experiment, response surface methodology was employed to optimize conditions for affecting the microencapsulation by using citrus peels essential oils as core materials and β-cyclodextrin as wall materials. The effect of wall-to-core material ratio, inclusion temperature, essential ethanol-to-essential oil ratio, inclusion time and β-cyclodextrin-to-water addition ratio on microencapsulation were investigated. The optimal reaction conditions were found to be:inclusion at 52℃ for 2h with wall-to-core material ratio of 5.8∶1 (g/mL) , ethanol-to-essential oil ratio of 19∶1 and water addition-to-β-cyclodextrin ratio of 8∶1 (mL/g) , resulting in a microcapsules retention rate of 65.97% and the embedding rate of 90.26%.
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Keywords:
- citrus peels essential oils /
- microcapsules /
- β-cyclodextrin
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