干燥苦瓜粉和微胶囊苦瓜粉显微结构

Study on Micro-structures of Microencapsulated Powders of Momordica charantia L. with Four Drying Methods

对热风、真空、冷冻、微胶囊喷雾干燥苦瓜粉进行显微观察,发现喷雾干燥苦瓜粉以附聚的形式存在,具有良好的溶解特性;所形成的微胶囊中,苦瓜纤维与糊精作为连续相,脂肪球作为分散相,乳化剂则分布于水-油两相之间,从而形成稳定的微胶囊体系。

Four drying methods including air drying, vacuum drying, freeze drying and spray drying on momordica charantia （MC） were compared. Through observing four kinds of dried powders of MC with a microscope and microencapsulating process of MC as well, it was found that MC spray-drying powders existed in an agglomerating form, leading to good dissolution capability. The encapsulated microcapsule with MC cellulose and dextrin acted as continues phase, and its lipid as distract phase and with the emulsifier distributed evenly between water and oil, leads to a stable microencapsulation system.