摘要
研究以鲈鱼油为芯材,探索乳化条件、处方工艺条件及喷雾干燥条件,电镜观察鱼油微囊的形态。乳化条件:乳化剂配比蔗糖酯与单硬脂酸甘脂质量比9︰1,均质转速为10 000 r/min,均质时间为1.0 min最佳。通过正交试验设计得到制备鱼油微囊的最佳处方工艺条件:壁材比(变性淀粉与麦芽糊精质量比) 2︰1、芯壁比1︰2、乳化剂用量1.00%。利用此条件制备鱼油微囊的综合分数最高。对最佳处方工艺进行验证试验, RSD为0.44%,表明工艺稳定。再通过正交试验设计得到制备鱼油微囊的最佳喷雾干燥条件:出风温度170℃、空气流量0.35 m3/min、固形物含量25%、空气压力0.3 MPa。在此工艺条件下,进样速度360 mL/h,雾化压力100 kPa。并对最佳喷雾干燥工艺进行验证试验, RSD为066%,表明工艺稳定。通过电镜显示微囊呈圆形或椭圆形,部分微囊有凹陷。
In this study, salmon oil was used as the core material. The conditions of emulsification, formulation and process conditions, and spray drying conditions were investigated. The morphology of the fish oil microcapsules was observed by electron microscopy. The emulsifier ratio as sucrose ester and monoglyceride was 9︰1, the speed of homogenization was 10 000 r/min, and the best time of homogenization was 1.0 min. The optimal formulation process conditions for preparation of fish oil microcapsules were obtained through orthogonal design: wall material ratio as 2︰1, ratio of core to wall as 1︰2, and emulsifier dosage as 1.00%. The highest comprehensive score of fish oil microcapsules was prepared by using this condition. According to verification experiment for the best process, RSD was 0.44%, and the process was stable and feasible. The optimum spray drying conditions for preparation of fish oil microcapsules were obtained through orthogonal test design, which were outlet air temperature of 170 ℃, air flow rate of 0.35 m3/min, solids content of 25%, and compressed air pressure of 0.3 MPa. In this process conditions, the injection speed was 360 mL/h, the atomization pressure was 100 kPa. According to the experimental data, RSD was 0.66%, and the process was stable and feasible. According to electron microscopic observation, the microcapsules are round or elliptical, and the individual microcapsules had depression.
作者
杨莹
张凌云
邓世明
YANG Ying;ZHANG Lingyun;DENG Shiming(College of Ocean,Hainan University,Haikou 570228;Key Laboratory of Tropical Living Resources,Ministry of Education,Hainan University,Haikou 570228)
出处
《食品工业》
CAS
北大核心
2019年第9期69-72,共4页
The Food Industry
基金
国家海洋局“十三五”海洋经济创新发展示范城市项目(HHCL201804)
“十二五”国家科技支撑计划项目:热带海洋特色生物资源开发与利用(2013BA01B04)
关键词
鲈鱼油
鱼油微囊
乳化条件
处方工艺
喷雾干燥
salmon oil
fish oil microcapsules
emulsifying conditions
prescription process
spray drying
