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林业科学 ›› 2007, Vol. 43 ›› Issue (03): 96-102.doi: 10.11707/j.1001-7488.20070316

• 论文及研究报告 • 上一篇    下一篇

碱性木聚糖酶在中小径竹KP浆漂白中的应用

黄六莲1,2 陈礼辉1 张建春1 蒲俊文2   

  1. 1.福建农林大学材料工程学院,福州350002;2.北京林业大学材料与科学技术学院北京100083
  • 收稿日期:2006-03-01 修回日期:1900-01-01 出版日期:2007-03-25 发布日期:2007-03-25

Bleaching of Bamboo Kraft Pulp with Alkaline Xylanase

Huang Liulian1,2,Chen Lihui1,Zhang Jianchun1,Pu Junwen2   

  1. 1.College of Materials Engineering, Fujian Agriculture and Forestry University Fuzhou 350002; 2. College of Material Science and Technology,Beijing Forestry University Beijing 100083
  • Received:2006-03-01 Revised:1900-01-01 Online:2007-03-25 Published:2007-03-25

摘要:

探讨碱性木聚糖酶用于中小径竹KP浆漂白预处理的最佳工艺条件及碱性木聚糖酶预处理对中小径竹KP浆ECF漂白的影响。结果表明,碱性木聚糖酶Unikfect100处理浆的最佳工艺为浆浓度4%,pH值9.0,温度65℃,时间20min,酶用量15.0×10-7mol·s-1g-1浆;对ECF漂白的影响为O-X-D1-EOP-D2漂序的漂白效果优于O-D/C-EOP-D2,在白度相近的情况下,纸浆的粘度及物理强度较高。

关键词: 竹浆, 生物酶漂白, 木聚糖酶

Abstract:

The pretreatment condition and the influence of elemental chlorine free (ECF) bleaching of xylanase to bamboo kraft pulp(KP) has been carried out. The results indicate that the best pretreatment condition of enzyme Unikfect 100 is: the consistency is 4%, pH 9.0,temperature 65 ℃,time 20 min, enzyme dosage 15.0×10-7 mol·s-1g-1 thick liquid. The influence of ECF bleaching is that the effect of O-X-D1-E OP-D2 is better than O-D/C-EOP-D2. At the similar brightness, the former pulp has higher viscosity and intensity.

Key words: bamboo pulp, biobleaching, xylanase