【摘要】 以淀粉为载体。将几种乳化剂与载体按一定比例一起挤压生产粉末乳化剂。用差示扫描量热分析仪(DSC)分析挤压前后混合物的转交温度和热焓,发现在挤压后比挤压前的焓值小。扫描电镜(SEM)研究乳化剂的微观结构,发现乳化剂像一层薄膜一样均匀的分布在淀粉颗粒表面上。将该粉末乳化剂应用到蛋糕中,发现生产出的蛋糕的品质要比加未挤压乳化剂的好。更多还原

【Abstract】 Mixture emulsifier and starch in certain proportion,then extruded with extruder to produce powder emulsifier.The transition temperature and enthalpy of the mixture before and after extrusion were analyzed by differential scanning calorimeter(DSC),the result showed that the enthalpy of the mixture after extrusion was smaller.The microstructure of powder emulsifier was studied by Scanning electron micrograph (SEM).The result indicated that the emulsifier was present as thin film surrounding the individual starch particles.The quality of cake produced by the combined emulsifier was better than the control.更多还原