洋葱精油微胶囊化工艺研究

摘要

The spray-drying and microencapsulation technology is used to embed the onion oil into certain wall materials.Take encapsulation rate as the main evaluation index,the optimum processing conditions of microencapsulation of onion oil are optimized by single-factor experiment and the orthogonal experiment as follows:the ratio of core material and wall material is 1∶4 ,the ratio of arabic gum and malt dextrin is 4∶3 ,the dosage of emulsifier is 0 .4%,the solids concentration is 20%.Based on the optimized conditions,the average encapsulation rate can reach 79.69%.%以洋葱精油为研究对象，采用微胶囊技术和喷雾干燥技术对洋葱精油进行包埋，以包埋率为主要指标，通过单因素实验和正交试验对影响洋葱精油微胶囊包埋效果的主要因素进行优化，得到最佳工艺条件：芯材与壁材比例1∶4、壁材配比4∶3、乳化剂用量0．4％、总固形物含量20％，在此工艺条件下，洋葱精油微胶囊包埋效果最好，平均包埋率为79．69％。