喷雾干燥法制备微胶囊化大豆胚芽油粉末油脂
发布时间：2018-10-22 12:31
【摘要】：为提高大豆胚芽油的氧化稳定性,本文采用喷雾干燥法制备微胶囊化大豆胚芽油粉末油脂,并研究了不同芯材、壁材比例及喷雾干燥条件变化对微胶囊化大豆胚芽油理化特性、微观结构及氧化稳定性的影响,采用的表征方法包括:粒径分布、乳液稳定性、喷雾干燥制得的微胶囊包埋率、水分含量、扫描电镜及氧化稳定性等。结果显示:喷雾干燥前,3号(壁材∶芯材为3∶5)和6号(壁材∶芯材为2∶3)样品稳定性较高,平均粒径分布均匀且较小。在单因素实验的基础上,采用Design-Expert软件对实验结果建立数学模型,喷雾干燥后样品条件:当壁材含量25%、油脂含量15%及出口温度为160℃时样品的状态最佳。外形颗粒较圆整、饱满,且表面光滑、裂纹较少,并且在室温下非常稳定,此时包埋率为97.15%。该结果说明壁材阿拉伯胶与芯材大豆胚芽油具有最适比例,可制备成微胶囊化大豆胚芽油,在此条件下所制取的微胶囊可防止大豆胚芽油氧化,延长油脂保质期。
[Abstract]:In order to improve the oxidation stability of soybean germ oil, the microencapsulated soybean germ oil powder oil was prepared by spray drying method. The physicochemical properties of microencapsulated soybean germ oil were studied under different core material, wall material ratio and spray drying conditions. The effects of microstructures and oxidation stability were investigated by means of particle size distribution, emulsion stability, encapsulation rate of microcapsules prepared by spray drying, moisture content, SEM and oxidation stability. The results showed that before spray drying, the stability of samples no. 3 (wall material: core material: 3:5) and 6 (wall material: core material: 2:3) was higher, and the average particle size distribution was uniform and smaller. On the basis of single factor experiment, the mathematical model of the experimental results was established by using Design-Expert software. After spray drying, the sample conditions were as follows: when the wall material content was 25%, the oil content was 15% and the outlet temperature was 160 鈩，
本文编号：2287168
[Abstract]:In order to improve the oxidation stability of soybean germ oil, the microencapsulated soybean germ oil powder oil was prepared by spray drying method. The physicochemical properties of microencapsulated soybean germ oil were studied under different core material, wall material ratio and spray drying conditions. The effects of microstructures and oxidation stability were investigated by means of particle size distribution, emulsion stability, encapsulation rate of microcapsules prepared by spray drying, moisture content, SEM and oxidation stability. The results showed that before spray drying, the stability of samples no. 3 (wall material: core material: 3:5) and 6 (wall material: core material: 2:3) was higher, and the average particle size distribution was uniform and smaller. On the basis of single factor experiment, the mathematical model of the experimental results was established by using Design-Expert software. After spray drying, the sample conditions were as follows: when the wall material content was 25%, the oil content was 15% and the outlet temperature was 160 鈩，
本文编号：2287168
本文链接：https://www.wllwen.com/shekelunwen/minzhuminquanlunwen/2287168.html
