微胶囊化大豆卵磷脂的制备  

Microencapsulation of soybean lecithin

作　　者：徐井水[1] 熊华[1] 彭地纬[1] 李湘[1] 刘玉珍[1] 韩丹[1] 

机构地区：[1]南昌大学食品科学与技术国家重点实验室,南昌330047

出　　处：《中国油脂》2010年第1期51-54,共4页China Oils and Fats

摘　　要：以大豆卵磷脂为芯材,采用喷雾干燥法生产大豆卵磷脂微胶囊。研究确定其最佳工艺条件为:壁材为大豆分离蛋白、明胶、麦芽糊精,三者质量比为1.5∶1∶10;乳状液固形物含量为25%;在45℃、25 MPa条件下均质2次;进风温度200℃,出风温度85℃。在此条件下,包埋率达到67.4%。大豆卵磷脂微胶囊化后,吸湿性降低,有利于延长其货架期。Soybean lecithin microcapsules were prepared by spray drying and microencapsulation technologies using soybean lecithin as core material. The optimal technology parameters were as follows：soybean protein isolate, gelatin and maltodextrin as wall materials（ the mass ratio of 1.5： 1：10 ）, the solid content of emulsion 25 %, homogenization for two times at 45℃ and 25 MPa, the inlet temperature 200℃, outlet temperature 85℃. Under these conditions , the embedding rate was up to 67.4%. The moisture absorption ability reduced and the shelf life prolonged after microencapsulation.

关 键 词：大豆卵磷脂 微胶囊 喷雾干燥 

分 类 号：TQ645.96[化学工程—精细化工]