文献类型：期刊文献

中文题名：漆酶-介体系统处理麦草化学浆全无氯漂白性能的研究

英文题名：TCF BLEACHING PROPERTIES OF WHEAT-STRAW PULPS PRE-TREATED BY ENZYME IN A LACCASE-MEDIATOR SYSTEM

作者：韩善明[1] 房桂干[1] 沈葵忠[1] 刘明山[1] Jean-Claude SIGOILLOT[2] Marther ASTHER[2]

第一作者：韩善明

通信作者：Han, S.-M.

机构：[1]中国林业科学研究院林产化学工业研究所;[2]INRA-Laboratoire de biotechnologie des champignons filamenteux

年份：2002

卷号：22

期号：4

起止页码：5-9

中文期刊名：林产化学与工业

外文期刊名：Chemistry & Industry of Forest Products

收录：CSTPCD;;EI(收录号：2003177450319);Scopus(收录号：2-s2.0-0036979009);CSCD:【CSCD_E2011_2012】；

基金：欧盟资助项目(INCO DC;ERBIC18CT980285)

语种：中文

中文关键词：漆酶-介体系统;全无氯漂白;性能;麦草化学浆;制浆

外文关键词：laccase-mediator system; total chlorine free(TCF) bleaching; wheat-straw chemical pulp

分类号：TS749.2;TS74

摘要：　采用漆酶 介体系统对麦草化学浆进行预处理,研究了几种全无氯漂白(TCF漂白)[氧碱脱木质素配合两段过氧化氢漂白(OEPP)、两段过氧化氢漂白(QPP)和过乙酸配合一段过氧化氢漂白(PaP)]对漆酶处理后纸浆漂白性能的作用。结果表明:麦草浆经过漆酶预处理后,白度上升了12.9个白度单位(%,ISO),漆酶处理浆氧碱脱木质素配合过氧化氢漂白后比原浆在相同条件下漂白后白度高14个白度单位以上,经两段过氧化氢漂白后白度比原浆在相同条件下(过氧化氢用量4%)漂白后白度高18.3个白度单位,经过乙酸过氧化氢漂白后比原浆在相同条件下漂白后白度高8.1个白度单位。漆酶处理浆漂白后强度比原浆漂白后的低,但是其白度高,如漂至相同的白度可以节约大量漂剂,有利于改善浆的质量,降低漂白废水的污染负荷。
A laccasemediator system was applied on pretreatment of wheatstraw pulps.The characteristics of enzyme treated pulps and their bleaching abilities by several total chlorine free(TCF) bleaching sequences were investigated.The results show that biotreatment of laccasemediator system can enhances not only optical properties but also physical strength of the treated pulps.After laccase treatment,brightness gain of pulp was up to 12.9 units (%,ISO).Using an OEPP bleaching sequence,the bleached pulp brightness of laccase treated pulps was higher by 14 units than that of bleached initial pulp.Bleached by a QPP bleaching sequence,laccase treatment could improve the bleached pulp brightness by 18.3 units more than that from initial pulp.After QPaP sequence bleaching,brightness of laccase treated pulp was of 8.1 units higher than that of bleached initial pulp.If the target brightness was the same,laccase treatment could save much bleaching chemicals,that was beneficial to reduce the load of bleaching effluence.The strength of bleached laccase treated pulp was similar to or a little bit lower than that of bleached initial pulp.