蔗渣硫酸盐浆漆酶/介体(LMS)生物漂白的影响因素  

Affecting Factors of Laccase/Mediator System Biobleaching of Bagasse Kraft Pulp

作　　者：喻力[1] 詹怀宇[1] 付时雨[2] 牛涛[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广州510640 [2]中国科学院广州化学研究所纤维素化学开放研究实验室,广州510650

出　　处：《纤维素科学与技术》2001年第1期21-27,共7页Journal of Cellulose Science and Technology

基　　金：国家自然科学基金 !( 2 9770 1 0 );教育部博士点基金! ( 2 0 0 0 0 561 0 1 );中国科学院广州化学研究所纤维素化学开放研究实验室

摘　　要：进行了蔗渣硫酸盐浆漆酶 /介体 (LMS)生物漂白的研究 ,分析了漆酶用量、NHA用量、氧压、pH值、处理温度和时间对漂白效果的影响 。In this paper,preliminary study on the laccase/mediator system(LMS) biobleaching of bagasse kraft pulp was carried out.Laccase was produced using a selected strain of Panus conchatus.Activity of laccase was measured with ABTS as substrate.A mediator —N-hydroxyacetanilide(NHA) was synthesized by reaction of hydroxybenzenamine with acetyl chloride.Laccase in the presence of NHA and oxygen was used for the bleaching of bagasse kraft pulp.It was found that the optimum conditions for the treatment of laccase/mediator system were:pH 5.0,temperature 50℃,reaction time 2 h,the charge of laccase 2.5U/g pulp,NHA 0.01g/g pulp and oxygen pressure 0.3 MPa respectively.

关 键 词：造纸 蔗渣硫酸盐浆 生物漂白 漆酶 介体 蔗渣 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]