麦秸的酶处理研究

A Study on the Wheat Straw Disposed by Enzyme

选择了 3种生物酶制剂对麦秸进行了处理。并用酶处理后的麦秸作原料 ,压制了脲醛树脂胶合的麦秸刨花板。结果表明 :在一定条件下 ,酶可以从细胞中分离出来 ,而不影响它的作用 :经纤维素和半纤维素的复合酶处理之后 ,麦秸表面的自由基都有了较大的提高 ;经脂肪酶处理后 ,可使麦秸的苯醇抽提物含量下降 ,处理时间延长 ,效果更好 ,这也间接地说明 ,脂肪酶处理麦秸 ,可降低其表面的蜡状物 ;用经酶处理后的麦秸作原料 ,可以压制出性能较好的脲醛树脂胶合的麦秸刨花板。其中 ,天津生物所研制的纤维素和半纤维素复合酶的效果最好。

In this research three kinds of enzyme were selected to dispose wheat straw. Besides, the wheat straw particleboard bonded UF is made with the raw materials of wheat straw disposed by enzymes. The result shows that the enzyme can be separated from the cell and its action is not affected in certain condition, the free-radial content of wheat straw increases obviously after it is disposed by cellolases and hemicellolases. The extract content of wheat straw by benzene and ethanol decreases obviously after it is disposed by lipases. It can be also concluded indirectly that the surface wax of wheat straw can be reduced through it is disposed by lipases. The better property of wheat straw particleboard bonded UF can be produced with the raw material of wheat straw disposed by enzymes. And the effect of the cellolases and hemicellolases produced at Tianjin Biology Institute is best.