Hence, five factors influencing the NSI of dreg protein, including the moisture content of material, extruding temperature, length of nib, gap of spindle nose, rev of strew, has been researched.

• 为此,研究了物料含水量、挤压温度、模孔长度、轴头间隙、螺杆转速5个因素对粕蛋白NSI的影响规律。