木聚糖酶处理改善速生杨化学机械浆性能的研究  

Improvement of Alkline Peroxide Mechanical Pulp Properties of Fast-growing Poplar by Xylanase Treatment

作　　者：杨桂花[1,2] 陈克复[1] 陈嘉川[2] 孟磊[2] 张凤山[3] 

机构地区：[1]华南理工大学制浆造纸国家重点实验室,广东广州510640 [2]山东轻工业学院制浆造纸省级重点学科,山东济南250353 [3]华泰集团有限公司,山东广饶257335

出　　处：《林产化学与工业》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)

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.

关 键 词：APMP 木聚糖酶处理 打浆度 物理性能 

分 类 号：TQ351.0[化学工程] TS712[轻工技术与工程—制浆造纸工程]