酶制剂对麦秸的特性影响

研究了不同类型酶制剂对麦秸的酸、碱性及缓冲容量、苯醇抽提物含量、表面自由基等特性的影响。用酶制剂处理的麦秸作原料压制了刨花板,测试了其主要性能。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;经过酶制剂处理后,麦秸的pH值变化不大,但缓冲容量有所降低;经过纤维素和半纤维素的复合酶制剂处理之后,麦秸表面的自由基有了较大提高;脂肪酶制剂处理后,麦秸的苯醇抽提物含量下降,处理时间愈长,效果愈好,这也间接说明,脂肪酶处理麦秸,可以降低其表面的蜡状物;用经过酶制剂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。

Influence of Enzyme Preparation on Character of Wheat Straw

Through experiment it was researched that the influence of different kinds of enzyme preparation to character of wheat straw,which was acidity and alkalescence,cushion capacity,extract content of benzene and ethanol,the surface free-radial content of wheat straw.Besides,the particleboard was made with the raw material of wheat straw disposed by enzyme preparation,and its main property was tested.The research result showed that the enzyme can be separated from the cell and its action was not affected in certain condition,and the pH-value of wheat straw was changed very small,but its cushion capacity was reduced more or less after it was disposed by enzyme preparation,and the surface free-radial content of wheat straw increases obviously after it was disposed by enzyme preparation of cellulose and hemicellulose.The extract content of wheat straw by benzene and ethanol decreases obviously after it was disposed by enzyme prearation of fattiness,and the longer the time of disposing was,the better the effect was.It can be also said indirectly that the surface wax of wheat straw can bereduced through it was disposed by enzyme preparation of fattiness.The better property of wheat straw particleboard bonded UF can be produced with the raw material of wheat straw disposed by ezyme preparation.