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改良木聚糖酶辅助漂白芦苇浆的工艺研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年02期
Page:
25-28
Column:
研究论文
publishdate:
2012-04-10

Article Info:/Info

Title:
Technological research on biobleaching effect of reed pulp boosted by modified xylanase
Author(s):
OUYANG Jia LIAN Zhina LIN Jinlei LI Xin SONG Xiangyang
College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
Keywords:
reed pulp modified xylanase pretreatment biobleach
Classification number :
TQ352; TS745
DOI:
10.3969/j.jssn.1000-2006.2012.02.006
Document Code:
A
Abstract:
Reed pulp was pretreated with modified xylanase, and the potential application of modified xylanase in reed pulp biobleaching was evaluated. The results indicated that modified xylanase could reduce chlorine dosage in C-stage up to 60%.The optimum pretreatment conditions of reed pulp with modified xylanase were as follows: pH 7.0, temperature 60 ℃, pulp consistency 5%, enzyme dosage 12 μmol/(min·g)and time 60 min. When chlorine consumption in stage C was reduced by 40% during bleaching, the brightness of bleached pulps from the xylanase pretreated reed pulp reached to 84.0%(ISO),which increased 3.7%(ISO)than that of the control. The enzymatic pretreatment with modified xylanase also improved properties of bleached pulp.

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Last Update: 2012-04-10