木聚糖酶用于杨木硫酸盐浆漂白条件的优化  

Optimization of Xylanase's Prebleaching Conditions of Poplar Sulfate Pulp

作　　者：王治艳[1] 陈嘉川[1] 

机构地区：[1]山东轻工业学院制浆造纸工程省级重点实验室,济南250353

出　　处：《纸和造纸》2009年第5期51-53,共3页Paper and Paper Making

摘　　要：用木聚糖酶对杨木硫酸盐浆进行预处理,以提高和改进其CEH三段漂白性能,优化并制定出木聚糖酶AU-3的预处理条件。木聚糖酶AU-3的最佳处理pH值为8,最佳处理温度为70℃,用量10IU·g-1绝干浆,此时纸浆的白度提高2%ISO。用木聚糖酶进行生物漂白,能有效降低漂白时有效氯用量,减轻对环境的污染。This research used poplar sulfate pulp as material to improve traditional three stages bleaching by using xylanase and exploit a new pulping method fitted to poplar sulfate pulp. We did this in order to find in what pretreatment condition it could be best. The xylanase AU-3＇s best pH is 8 in the condition of 70℃ and 10 IU·g^-1 pulp. In this case its whiteness could increase 2%ISO than blank pulp not pretreated by xylanase. The biological bleaching with the xylanase could reduce the amount of effectively chlorine we used, and also be good to the environment.

关 键 词：CEH三段漂 木聚糖酶 生物漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]