摘要
用木聚糖酶处理速生杨化学机械浆(APMP),通过分析检测处理后纸浆的打浆度和成纸物理性能,探讨了木聚糖酶处理对速生杨高得率浆抄造性能的影响。实验结果表明,与未经过木聚糖酶处理APMP浆相比,酶处理后纸浆的打浆度降低10°SR以上,返黄(PC)值下降0.28,抗张指数和耐破指数稍有降低,而撕裂指数提高0.34mN.m2/g,不透明度提高1.1%,松厚度提高0.08cm3/g,戊聚糖含量降低1.64%,酸溶木质素含量稍有降低,纤维素含量和Klason木质素含量相对提高。木聚糖酶处理速生杨高得率纸浆,主要降解纸浆中的木聚糖,对纤维素大分子影响较小。
Treatment of alkline peroxide mechanical pulp （APMP） of fast-growing poplar by xylanase was studied. Using beating degree and physical properties of the treated pulp as index, effects of xylanase treatment on the high-yield pulp properties of fastgrowing poplar were discussed. The results showed that, compared with non-treated APMP pulp, beating degree and post color （PC） value of the treated pulp by xylanase were reduced respectively 10 °SR and 0.28. Indexes of tensile strength and bursting strength were reduced slightly, and tearing index, opacity and bulk thickness were improved respectively 0.34 mN-m^2/g, 1.1% and 0.08 cm^3/g. Pentosan content of the treated APMP pulp was reduced 1.64 % , content of acid-soluble lignin was reduced slightly, and contents of cellulose and Klason lignin were increased. Xylanase treatment could degrade mainly pentosan, and had little effect on cellulose.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2009年第2期105-109,共5页
Chemistry and Industry of Forest Products
基金
国家自然科学基金(30671648)
山东省自然科学基金(Z2006B08,Y2007D41)
山东大学微生物技术国家重点实验室基金(MK01)
关键词
APMP
木聚糖酶处理
打浆度
物理性能
alkline peroxide mechanical pulp（APMP）
xylanase treatment
beating degree
physical properties
作者简介
杨桂花（1966-），女，山东潍坊人，教授，博士，研究方向为速生林高得率制浆技术和制浆造纸绿色化学与技术。
