反向凝胶法制备孜然精油微胶囊的工艺优化及其释放

Preparation and Release of Cumin Essential Oil Microcapsules by Inverse Gelation Method

运用了反向凝胶法,以海藻酸盐为壁材,孜然精油为芯材制备孜然精油微胶囊,研究反向凝胶法制备孜然精油微胶囊对孜然精油的包埋效果以及孜然精油微胶囊释放效果。结果表明:运用反向凝胶法制备的孜然精油微胶囊包埋率达到了85.09%;微胶囊具有相对圆整的外貌特征,约76%的孜然精油微胶囊粒径分布在500~800μm之间,呈正态分布;通过控制吐温80添加,可以有效控制孜然精油微胶囊的膜厚度,从而间接控制微胶囊的缓慢释放。

The cumin essential oil microcapsule was prepared by reverse gel method,with alginate as wall material and cumin essential oil as core material.The embedding effect of cumin essential oil microcapsule prepared by reverse gel method on cumin essential oil and the release effect of cumin essential oil microcapsule were studied.The results showed that the encapsulation rate of cumin essential oil prepared by reverse gel method reached 85.09%.About 76%of the cumin essential oil microcapsules were in the range of 500~800μm,presenting a normal distribution.By controlling the addition of Tween 80,the film thickness of cumin essential oil microcapsules can be effectively controlled,so as to indirectly control the slow release of microcapsules.