酶处理对杨木表面性能和胞壁弹性模量的影响  

Influence of Enzyme Treatment on Wetability and Modulus of Elasticity of Poplar

作　　者：朱捷[1] 张洋[1] 周兆兵[1] 

机构地区：[1]南京林业大学木材工业学院,江苏南京210037

出　　处：《木材工业》2011年第6期13-16,共4页China Wood Industry

基　　金：国家自然科学基金(31070492)

摘　　要：探究杨木经木聚糖酶处理前后,其表面接触角、自由能和细胞壁弹性模量的变化规律。研究表明,酶处理杨木的表面润湿性能、自由能和细胞壁弹性模量均显著提高,但是随着处理时间的持续增加及酶用量的增多,改善效果趋于平缓。综合考虑,以处理时间6h,酶用量1mL/g为宜。A study of xylanase enzyme treatment on poplar specimens was conducted to improve specimens ＇ surface wetability and modulus of elasticity.The results showed that enzyme concentration and treatment duration had noticeable effect on the surface energy of poplar samples.Generally,high enzyme concentration and long treatment increased the surface contact angle and free energy,but modulus of elasticity increased at the initial stage,and then decreased.It was found,in this study,that the optimized treatment time was 6 hours with an enzyme concentration of 1 mL/g.

关 键 词：木聚糖酶 生物酶处理 杨木 表面润湿性能 细胞壁 弹性模量 

分 类 号：S781[农业科学—木材科学与技术]