白腐菌预处理对粉单竹化学成分和微观纤维形态结构的影响  

Effects of Pretreatment of Bamboo by White-rot Fungi on its Chemical Composition and Fiber Morphology

作　　者：熊建华[1,2,3,4] 程昊[2] 王双飞[3] 李可成 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西工学院生化系,广西柳州545006 [3]广西大学造纸科学研究所,广西南宁530004 [4]加拿大New Brunswick大学,加拿大弗雷德里克顿E386C2

出　　处：《中国造纸学报》2010年第2期27-31,共5页Transactions of China Pulp and Paper

基　　金：国家973计划前期研究项目(2006CB708600)资助课题

摘　　要：3种白腐菌菌株对粉单竹进行1～4周的生物培养,通过考察竹片在生物预处理后质量损失率、木素去除率、综纤维素损失率、木素降解选择因子的变化,筛选出能够选择性有效去除竹片木素的白腐菌Trameteshirsuta19-6作为研究对象。用显微镜观测粉单竹纤维细胞壁的结构特点,以及白腐菌预处理引起的竹片纤维微观形态结构的变化,探讨白腐菌生物降解竹片的机理。Three white rot fungi were incubated on white powdery bamboo in the optimum conditions for 1 to 4 weeks, white rot fungi Trametes hirsuta 19-6 was screened for efficient selective delignification based on the evaluation of bamboo chips weight loss, lignin removal, holocellulose lose, the factors affecting selective degradation of lignin. Electron microscopes were used to study the character of white powdery bamboo fiber cell wall structure changes brought by fungal pretreatment. The mechanism of white-rot fungi attack on bamboo was studied.

关 键 词：粉单竹 生物机械制浆 扫描电子显微镜 透射电镜 白腐菌 

分 类 号：TS712[轻工技术与工程—制浆造纸工程] TS748