DHA MICROENCAPSULATION & DROPLET DRYING BEHAVIOUR

摘要：

　　Productions of poly-unsaturated fatty acids in omega-3 series have attracted the attention of functional food industries due to their benefits to human health.An example is the docosahexaenoic acid (DHA) adopted in this study.Here,DHA was microencapsulated with emulsified-starch to decrease its oxidation,improve stability during storage,and mask unpleasant odor.A glass-filament single-droplet drying approach was utilized to yield accurate kinetics data of encapsulated fish-oil containing 40% DHA from the emulsion droplet during a thermal drying process.The Reaction Engineering Approach (REA) was used to obtain the drying model from experimental data in the form of the master activation-energy curve.This curve provides a good description of drying behavior,while also produces an accurate prediction of drying kinetics.The use of the single-droplet drying rig was extended to observe the dissolution behavior of the dried particle.Based on dissolution and wetting phenomena observed,the crust formations during and after the drying of emulsion droplet were studied.

关键词： DHA micro-encapsulation single-droplet drying drying kinetics Reaction engineering approach (REA) dissolution crust formation

作者: (Wendy) Yang Wang Liming Che Cordelia Selomulya Xiao Dong Chen

作者单位: Department of Chemical and Biochemical Engineering,Xiamen University 422 Siming South Road,Siming Di Department of Chemical and Biochemical Engineering,Xiamen University 422 Siming South Road,Siming Di Department of Chemical Engineering,Monash University Clayton Campus,Victoria,3800,Australia

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-9

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）