机筒温度过高反而使蛋白质体外消化率减小，水分含量过高反而使膨化度减小。
However, excessive temperature and excessive moisture content reduced in-vitro protein digestibility and expansion ratio, respectively.
结果表明：淀粉酶转化程度不受螺杆转速影响，但随物料水分、酶质量分数和机筒温度增加而增大；
The result showed that DE values were not effected by screw speed, but increased with material moisture, enzyme mass fraction and barrel temperature;
采用响应面分析方法研究了螺杆转速、机筒温度、物料水分和酶质量分数对挤出物de值的影响规律。
The response surface methodology was used to study the influences of screw speed, barrel temperature, material moisture and enzyme mass fraction on DE values.
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