通过研究木聚糖酶处理条件对麦秸表面性能的影响,得出最佳工艺条件为:处理温度45 ℃、时间6 h、pH 5.0、酶用量205.0 IU·g~(-1).借助扫描电子显微镜和傅立叶红外光谱分析技术,分析酶处理后麦秸单元的微观结构和表面官能团变化的结果表明:酶处理的麦秸单元的外表面接触角显著减小;-OH峰明显增加,纤维素、木质素类物质大量暴露出来;蜡质层脱落和翘起,有明显纤维骨架露出,有利于提高其胶合性能.%The experiment of xylanase treatment on wheat straw was conducted. The optimum conditions of the treatment to improve the surface properties of wheat straw were that treatment temperature 45 ℃, treatment time 6 h, pH 5.0, enzyme usage 205.0 IU · g~(-1). The microstructure and surface functional group of treated wheat straw were investigated with electricity microscope and fourier transform infrared spectroscopy ( FTIR).The results indicated that the contact angle of outer surface of treated wheat straw de-creased evidently; the outer surface of treated wheat straw was rough, the wax-layer of wheat straw was dissolved; cellulose and lig-nin were activated with -OH increasing.
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