ENZYMATIC BLEACHING OF WHEAT STRAW SODA--AQ PULP BY LMS TREATMENT

编号 zgly0000332949

文献类型 期刊论文

文献题名 ENZYMATIC BLEACHING OF WHEAT STRAW SODA--AQ PULP BY LMS TREATMENT

学科分类 220.5570;林产化学加工学

作者 XiwenWang  HuaiyuZhan  LiliXu 

作者单位 StateKeyLabofPulpandPaperEngineering 

母体文献 天津科技大学学报 

年卷期 2004,19(A02)

页码 291-295

年份 2004 

分类号 TS74 

关键词 酶漂白  小麦秸杆  苏打-AQ纸浆  LMS处理  虫漆酶中介系统 

文摘内容 Laccase has been proven that it has a good selectivity and efficiency in pulp bleaching. In this paper, the effects of LMS (Laccase Mediator System) treatment on delignification and bleaching of wheat straw pulp at various conditions, such as laccase dosage, temperature, oxygen pressure and pH, were investigated. The TCF sequence including LMS can bleach the wheat straw pulp to 81% ISO brightness with good strength. The synergetic biobleaching of LMS and xylanase of wheat straw pulp was also investigated. It was found that the final brightness and strength of synergetic biobleaching pulps increased to a certain extent and the bleaching selectivity was improved. The combination of the enzymes is feasible for the delignification and bleaching。