杨木KP浆DED漂序木聚糖酶预处理工艺条件的优化  

The improved xylanase pretreatment of DED bleaching of the triploid of populus tomentosa kraft pulp

作　　者：熊开峰[1] 陈夫山[1] 邱化玉[2] 

机构地区：[1]天津科技大学材料与化学工程学院,天津300222 [2]山东轻工业学院制浆造纸工程重点学科,山东济南250353

出　　处：《山东轻工业学院学报（自然科学版）》2007年第3期72-74,共3页Journal of Shandong Polytechnic University

摘　　要：对杨木KP浆DED漂序木聚糖酶预处理工艺条件进行了研究。结果表明,AU-PE89木聚糖酶预处理DED漂白较优的预处理条件为:酶用量0.005%,温度50℃,时间60 min,初始pH值7.0,浆浓7%。木聚糖酶预处理可改善纸浆的漂白性能,白度及其稳定性有所提高,但漂白得率和粘度稍有降低。The bleachability of kraft pulp of Trioploid of Tomentosa was studied by using DED bleaching sequences with xylanase pretreatment. The better bleaching results were obtained when xylanase dosage 0.005% ,temperature 50 ℃, time 60 min,the first pH value 7.0,pulp viscosity 7% .The experiment results showed that pulp bleaching ability was improved and pulp brightness stability was also enhanced by xylanase pretreatment, but bleaching yields and pulp viscosity were dropped a little.

关 键 词：木聚糖酶 漂白性能 二氧化氯漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]