以螺旋藻为主壁材的亚麻油微胶囊制备.pdf

研究论文Dl:10.3969/jisn.1673-1689.2017.04.002以螺旋藻为主壁材的亚麻油胶囊制备张茜青,齐崴,王梦凡,黄仁亮,苏荣欣,何志敏(天津大学化工学院,天津300072)摘要:以螺旋藻为主要壁材,以亚麻油为芯材,通过喷雾干燥技术制备微胶裳。考察了喷雾干燥工艺参数及进料配方对微胶囊产品质量的影响,筛选出明胶和麦芽糊精作为辅助壁材,并对微胶曩产品的性能进行了一系列表征。研究结果表明:单一螺旋藻壁村包埋亚麻油微胶囊的最佳制备条件为空气压3bar,空气流速4.3m/s,进口温度190,进料流量900mLh,进料质量分数10%,芯壁材质量比1:3,在此条件下微胶袁包埋率为48.85%。与单一螺旋藻壁材相比,复合壁材微胶隶具备更高的包埋率,以螺旋藻为主壁材,以明胶和麦芽糊精为辅助壁材制备的亚麻油徽胶囊包埋率可提升至75.36%。通过表征分析及性能检测可知,喷雾干燥制备的螺旋藻徽胶隶表面光滑,颗粒圆、尺小,平均粒径为7.20m,且抗氧化性与市售螺旋藻粉相比提高47.7%。螺旋藻与明胶、麦芽糊精复配制得的微胶具有良好的热稳定性和储存稳定性,当温度由40升至200时,复合壁材微胶的质量保持率为82.96%;复合壁材微胶能有效延缓芯材亚麻油的氧化进程,且室温储存30d后微胶囊芯材保留率仍维持在80%以上。关键词:螺旋藻;亚麻油;喷雾干燥;微胶袁中图分类号:TS201.1文献标志码:A文章编号:1673-1689(2017)04-0343-09Microencapsulation of Flaxseed Oil Using Spirulina as Main Wall MaterialZHA NG Xiqing, OI Wei, WANG Mengfan, HUANG Renliang, SU Rongxin, HE Zhimin( School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaAbstract: The microencapsulation of flaxseed oil using spirulina as main wall material wasprepared by spray drying. The effects of spray drying process parameters and formula on themicroencapsulated powders were investigated in this study. Gelatin and maltodextrin were selectedas the supplementary wall materials. The characteristics of the powders were studied. The optimumtechnological parameters for microencapsulation of flaxseed oil using spirulina by spray drying wereas follows: 3 bar of air pressure, 4.3 m/s of fan speed, 190 C of inter temperature, 900 m/h of feedspeed, 10% of feed concentration, and 1: 3 of the weight ratio of core material to wall material. Themicroencapsulation efficiency was thus improved to 48.85%. The compound wall materials providedhigher microencapsulation efficiency compared with the single wall material. Themicroencapsulation efficiency increased to over 75% with 5% spirulina, 10%gelatin and 5收稿日期:2015-04-28基金项目;国家863计划项目(2013AA102204)。*通信作者:齐崴(1973),女,天津人,工学博士,教授,博土研究生导师,主要从事酶工程与技术研究。E-mail:qiweitju.edu.cn引用本文:张茜青,齐崴,王梦凡,等,以螺旋藻为主壁材的亚麻油微胶囊制备叭.食品与生物技术学报,2017,36(04):343-31念品5术学报2017年第36卷第4期343