我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

重组木聚糖酶预处理对麦草浆漂白性能的影响(PDF)

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

Issue:
2010年04期
Page:
57-60
Column:
研究论文
publishdate:
2010-08-06

Article Info:/Info

Title:
Effect of recombinant xylanase pretreatment on bleachability of wheat pulp
Author(s):
YOU Jixue ZHU Liuqing LIAN Zhinan OUYANG Jia*
Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
Keywords:
recombinant xylanase pretreatment wheat pulp
Classification number :
TQ352;TS727
DOI:
10.3969/j.jssn.1000-2006.2010.04.013
Document Code:
A
Abstract:
Wheat straw pulp was pretreated with recombined xylanase that was produced from Tyichoderma reesei Rutc30 through gene recombination for reducing environment pollution, and the optimum pretreatment conditions of wheat pulp with recombined xylanase were as follows: pH 6.0, temperature 50℃, pulp consistency 7 %, time 1h, enzyme dosage 5 μmol/(min·g). Comparing with original pulp and control pulp, the Kappa number of pulp treated at optimum pretreatment conditions decreased by 27.98 % and 18.71 %, respectively. The chlorine dosage could be decreased by 50 % after pretreatment following sodium hypochlorite bleaching compared with control pulp at close brightness (72.6 %, ISO). The crystallinity of cellulose slightly increased from 60.0 % to 63.5 % after recombinant xylanase pretreatment. The SEM images of pulp further explained why the chlorine dosage could be saved after recombinant xylanase pretreatment and reduced effluent pollution load.

References

[1]胡宗渊. 激荡六十年,中国造纸工业的建国大业[J]. 中华纸业,2009,30(19):20-27.
[2]Pratima Bajpai, Pramod K Bajpai. Deinking with enzymes: a review[J]. Tappi J, 1998, 81(12): 111.
[3]Robert Bourbonnais. Enzymatic delignification of kraft pulp using laccase and a mediator[J]. Tappi J, 1996, 79(6): 199-204.
[4]Martin Lund, Claus Felby. Wet strength improvement of unbleached kraft pulp through laccase catalyzed oxidation[J]. Enzyme and Microbial Technology, 2001, 28: 760.
[5]Chavonda J Jacobs, Richard A Venditti, Thomas W Jorce. Effect of enzyme pretreatments on conventional kraft pulping[J]. Tappi J, 1998, 81(2): 143-147.
[6]顾阳,王艳,勇强,等. 低纤维素酶活木聚糖酶对麦草浆的辅助漂白作用[J]. 南京林业大学学报: 自然科学版,2006,30(3):19-22.
[7]石淑兰,何福望. 制浆造纸分析与检测[M]. 北京:中国轻工业出版社,2003.
[8]尤纪雪,毛连山,余世袁. 木聚糖酶中纤维素酶对麦草浆生物漂白的影响[J]. 中国造纸,2006,30 (3):19-22.
[9]Paice M G, Gumagual N, Page D H, et al. Mechanism of hemicellulose directed prebleaching of kraft pulp[J]. Enzyme Microb Technol, 1992, 14: 272-276. (责任编辑李燕文)第34卷第4期2010年7月南京林业大学学报(自然科学版)Journal of Nanjing Forestry University (Natural Science Edition)Vol.34, No.4Jul., 2010

Last Update: 2010-08-06