木聚糖酶处理对麦秸表面性能的影响  

Influence of xylanase treatment on surface properties of wheat straw

作　　者：刘艳萍[1] 张洋[1] 江华[2] 吴羽飞[1] 

机构地区：[1]南京林业大学木材工业学院 [2]南京林业大学化学工程学院,江苏南京210037

出　　处：《福建农林大学学报（自然科学版）》2009年第5期548-551,共4页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家自然科学基金资助项目(30671640);教育部博士点基金资助项目(20060298004);江苏省自然科学基金资助项目(164030044)

摘　　要：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 decreased evidently; the outer surface of treated wheat straw was rough, the wax-layer of wheat straw was dissolved; cellulose and lignin were activated with --OH increasing.

关 键 词：木聚糖酶 麦秸 表面性能 

分 类 号：TS721.3[轻工技术与工程—制浆造纸工程]