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论文类型：期刊论文

发表时间：2007-04-01

发表刊物：9th International Conference on Process Integration, Modelling and Optimization for Energy Saving and Pollution Reduction

收录刊物：SCIE、EI、Scopus

卷号：25

期号：4-6

页面范围：695-702

ISSN号：0737-3937

关键字：microcapsule; microcricapsulation efficiency; phospholipid; spray drying; wall material

摘要：An experimental study of spray drying was carried out aimed at improvement of the phospholipid microencapsulation process. Three kinds of wall materials, maltodextrin blended with sodium caseinate, gelatin, and soy protein, respectively, were used to prepare phospholipid emulsion. Through examining the emulsion stability, a stable emulsion with the sodium caseinate contained system was obtained under 2.5 of mass ratio between maltodextrin and sodium caseinate, 70-80 degrees C of emulsification temperature, 2.5% of emulsifier concentration, and 40 MPa of homogenization pressure. Phospholipid microcapsules with a mean size of 62 pm in apparent geometric diameter and good fluidity, dispersion, and dissolubility were prepared under 140 degrees C of air inlet temperature, 30 degrees C of feed temperature, and 20% of solids concentration. Up to 90% of phospholipid microencapsulation efficiency is achieved. In addition, phospholipid microcapsules have good dissolubility, fine appearance, and excellent fluidity and dispersion.