Xylanase-induced reduction of chlorine dioxide consumption during elemental chlorine-free bleaching of different pulp types

被引：45
作者：
Madlala, AM
Bissoon, S
Singh, S
Christov, L
机构：
[1] Univ Orange Free State, Dept Microbiol & Biochem, Sappi Biotechnol Lab, ZA-9300 Bloemfontein, South Africa
[2] ML Sultan Technikon, Dept Biol Sci, ZA-4000 Durban, South Africa
[3] Sappi Management Serv, ZA-1560 Springs, South Africa
来源：
BIOTECHNOLOGY LETTERS | 2001年 / 23卷 / 05期
基金：
新加坡国家研究基金会;
关键词：
biobleaching; brightness; chlorine dioxide; paper pulps; xylanase;
D O I：
10.1023/A:1005693205016
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The potential of crude xylanase from Thermomyces lanuginosus and Xylanase P (a commercial xylanase) was evaluated in bleaching of various paper pulp types. Xylanases released chromophores and reducing sugars and decreased kappa number of pulps. Chlorine-bleached, alkali-extracted bagasse and post-oxygen kraft pulps, pretreated with enzymes, gained over 5 brightness points over controls. Biobleaching of soda-aq pulp with Xylanase P produced chlorine dioxide savings of up to 30% or 4.5 kg chlorine dioxide t(-1) pulp.
引用
收藏
页码：345 / 351
页数：7
相关论文
共 18 条
[1]   PRODUCTION AND CHARACTERIZATION OF THERMOSTABLE XYLANASES BY THERMOMYCES-LANUGINOSUS AND THERMOASCUS-AURANTIACUS GROWN ON LIGNOCELLULOSES [J].
ALAM, M ;
GOMES, I ;
MOHIUDDIN, G ;
HOG, MM .
ENZYME AND MICROBIAL TECHNOLOGY, 1994, 16 (04) :298-302
[2]   INTERLABORATORY TESTING OF METHODS FOR ASSAY OF XYLANASE ACTIVITY [J].
BAILEY, MJ ;
BIELY, P ;
POUTANEN, K .
JOURNAL OF BIOTECHNOLOGY, 1992, 23 (03) :257-270
[3]   THE IMPACT OF XYLANASES ON BLEACHING OF EUCALYPTUS KRAFT PULP [J].
BAJPAI, P ;
BHARDWAJ, NK ;
BAJPAI, PK ;
JAUHARI, MB .
JOURNAL OF BIOTECHNOLOGY, 1994, 38 (01) :1-6
[4]  
Christov LP, 1998, S AFR J SCI, V94, P195
[5]   Production, partial characterization and use of fungal cellulase-free xylanases in pulp bleaching [J].
Christov, LP ;
Szakacs, G ;
Balakrishnan, H .
PROCESS BIOCHEMISTRY, 1999, 34 (05) :511-517
[6]   Bleach boosting effect of cellulase-free xylanase of Streptomyces thermoviolaceus and its comparison with two commercial enzyme preparations on birchwood kraft pulp [J].
Garg, AP ;
Roberts, JC ;
McCarthy, AJ .
ENZYME AND MICROBIAL TECHNOLOGY, 1998, 22 (07) :594-598
[7]   Enzymatic removal of hemicellulose from dissolving pulps [J].
Gubitz, GM ;
Lischnig, T ;
Stebbing, D ;
Saddler, JN .
BIOTECHNOLOGY LETTERS, 1997, 19 (05) :491-495
[8]  
Haarhoff J, 1999, BIOTECHNOL LETT, V21, P415, DOI 10.1023/A:1005406010391
[9]  
HOQ MM, 1995, APPL MICROBIOL BIOT, V43, P604, DOI 10.1007/s002530050458
[10]   PROPOSED MECHANISM OF THE ENZYMATIC BLEACHING OF KRAFT PULP WITH XYLANASES [J].
KANTELINEN, A ;
HORTLING, B ;
SUNDQUIST, J ;
LINKO, M ;
VIIKARI, L .
HOLZFORSCHUNG, 1993, 47 (04) :318-324
12