乳液组成和喷雾干燥条件对罗非鱼油微胶囊化的影响。
Influence of emulsion composition and spray-drying conditions on microencapsulation of tilapia oil.
机构信息
South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of Aquatic Products Processing of Ministry of Agriculture, National R&D Center For Aquatic Product Processing, 231 Xingangxi Road, Haizhu District, Guangzhou, 510300 China.
出版信息
J Food Sci Technol. 2014 Sep;51(9):2148-54. doi: 10.1007/s13197-012-0711-2. Epub 2012 May 13.
The influence of processing conditions on the microencapsulation of tilapia oil by spray drying was studied. Trehalose, gelatin, sucrose and xanthan were used as emulsion composition. The experimental parameters of spray drying such as inlet air temperature, solid content, drying air flow rate and atomizing pressure were optimized using a central composite design. Encapsulation efficiency and lipid oxidation were determined. Bulk density, powder morphology and particle size were also analyzed. Trehalose improved the glass transition temperature of wall material significantly and prevented the oxidation of the fish oil. Encapsulation efficiency reached a maximum of 90 % under optimum conditions with an inlet air temperature of 121 °C, a drying air flow rate of 0.65 m(3)/min and a spray pressure of 100 kPa.
研究了喷雾干燥过程中加工条件对罗非鱼油微胶囊化的影响。海藻糖、明胶、蔗糖和黄原胶被用作乳液成分。通过中心复合设计优化了喷雾干燥的实验参数，如入口空气温度、固含量、干燥空气流量和雾化压力。测定了包埋效率和脂质氧化。还分析了堆密度、粉末形态和粒径。海藻糖显著提高了壁材的玻璃化转变温度，防止了鱼油的氧化。在最佳条件下，入口空气温度为 121°C，干燥空气流量为 0.65m(3)/min，喷雾压力为 100kPa，包埋效率最高可达 90%。
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