鼠曲草黄酮类物质微胶囊化研究

目的：探讨冷冻干燥法制备鼠曲草黄酮微胶囊的最佳工艺条件。方法：以黄原胶和β- 环状糊精作为鼠曲草黄酮微胶囊壁材，通过冷冻干燥进行微胶囊化。结果：选用黄原胶和β- 环状糊精(1:15，m/m) 作为鼠曲草黄酮的微胶囊壁材，芯材与壁材的配比为1:10(m/m)时，能达到较好的微胶囊化效果；最佳冷冻干燥工艺条件为：冷凝器温度－ 40℃，物料厚度8mm，搁板温度40℃。结论：得到的产品微胶囊化效率达90% 以上，包埋效果好。

Microencapsulation of Flavonoids from Chaphalium affine D.Don

Objective: To study the optimal preparation technology of Chaphalium affine flavonoids microcapsule. Methods: Arabia gum and β-CD were selected as the wall materials and the flavonoids extract of Chaphalium affine was microencapsulated by the method of freeze-drying. Results: The optimum ratios (m/m) of arabia gum to β-CD and wall materials to core material were 1:15 and 1:10, respectively. The best conditions for freeze-drying were as follows: condenser temperature, －40 ℃; material thickness, 8 mm; and shelf temperature, 40 ℃. The microencapsulation efficiency was higher than 90% and good embedding effect was achieved.