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文佑英， 赵文英*， 岳莉， 张丹丹， 胡相靖
(青岛科技大学 化工学院，山东 青岛 266042)
摘要: 以辛烯基琥珀酸酯化淀粉(HI-CAP100)为囊材用喷雾干燥法制备石榴籽油微囊，并用星点设计-效应面优化法对影响微囊包封率的主要因素,包括固形物含量、进风温度、雾化压力、进液速度进行考察。在微囊含油量40％前提下，得出最佳工艺条件：固形物含量23.5％（质量分数）、进风温度195 ℃、雾化压力0.20 MPa、进液速度24 mL·min-1，在此条件下所得石榴籽油微胶囊平均包封率达85.6％，与预测值(86.2％)基本吻合，优化得到的工艺条件合理、稳定可行。
关键词: 石榴籽油； 微胶囊； 星点设计
中图分类号: R 943 文献标志码： A
Optimizing the Micro-encapsulation of Pomegranate Seed Oil Preparation Technology by Central Composite Design and Response Surface Method
WEN You-ying, ZHAO Wen-ying, YUE Li, ZHANG Dan-dan, HU Xiang-jing
(College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: The pomegranate seed oil is micro-encapsulated with HI-CAP100, a kind of modified starch, and the main factors affecting the encapsulation efficiency of microcapsules are optimized by central composite design and response surface method. Under the premise of the oil content 40％，the optimizing parameters were obtianed as follows: the solid mass content 23.5％, the inlet air temperature in spray-drying process 195 ℃, the atomization pressure 0.20 MPa, and the input speed 24 mL·min-1, thus the encapsulation efficiency of micro-capsules was 85.6％. On this condition, the practical encapsulation efficiency agreed with the value predicted by central composite design and response surface method(86.2％), and the optimum condition was reasonable and practicable.
Key words: pomegranate seed oil； micro-capsule； central composite design
收稿日期:2010-06-02
基金项目： 山东省中青年科学家科研奖励基金项目(BS2009SW033);青岛科技大学博士基金项目(qust20071217).
作者简介: 文佑英(1985—)，女，硕士研究生. *通信联系人.
