菜籽仁混合挤压脱除硫甙

Study on Removing Glucosinolates of Rapeseed Kernels by Mixing Extrusion

在实验室挤压机上,通过菜籽仁和玉米粉混合挤压,筛选了脱毒添加剂种类,考察了添加剂质量分数、挤压温度、螺杆转速及原料水分对菜籽仁硫甙脱除率的影响.结果表明:菜籽仁和玉米粉混合可实现稳定挤压脱毒;与其它添加剂比较,添加剂(A+B)对硫甙降解脱除效果更显著,硫甙脱除率可高于98%.最合理的混合挤压加工条件为:(A+B)添加量为0.263%+0.179%,挤压温度130℃,螺杆转速95 r/min,原料水分质量分数为12.0%.

In the laboratory extruder, extruding the mixing meal of rapeseed kernels and corn meal was carried out, The effect of different additives, dosage of A＋B additives, extruding temperature, screw rotate speed of extruder and the moisture of the mixing meal of rapeseed kernels and corn meal on the removing rate of Glucosinolates was studied. The results showed that, continuous extrusions could be achieved by extruding the mixing meal of rapeseed kernels and corn meal （1：1）, the effect of A＋B additives on the removing rate of Glucosinolates is more remarkable than other additives, the removing rate of Glucosinolates of more that 98% could be achieved ; the effect of the dosage of A＋B additives on the removing rate of Glucosinolates was the most remarkable factor amonge the conditions considered. The optimum extruding conditions were as follows： dosage of A＋B additives 0. 263%＋0. 179%, extruding temperature 130℃, screw rotate speed of extruder 95 r/min, moisture content 12.0%.