白腐菌胞外酶降解木素的机制及其协同作用  

Mechanism of Delignification of Cetoenzym from White Rot Fungi

作　　者：刘浩[1] 付时雨[1] 刘梦茹[1] 詹怀宇[1] 陈元彩[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,广东广州510640

出　　处：《中国造纸学报》2007年第4期96-101,共6页Transactions of China Pulp and Paper

摘　　要：白腐菌是唯一能完全降解木质纤维素的微生物,其分泌的胞外酶对木素的降解倍受关注。木质纤维素中木素的降解是多种生物酶作用的结果,文中叙述了漆酶、多种过氧化物酶、产过氧化氢的氧化酶等胞外酶的作用机制,以及这些酶之间存在的广泛而复杂的协同作用。White rot fungi is the only type of micro-organisms that can completely degrade lignocellulose in the nature, whose extracellular ligninolytic enzymes have been attracted more and more attention in recent years. The degradation of lignocellulose is the result of different enzymes＇ function. The mechanism of the fungi extracellular ligninolytic enzymes, including laccase, peroxidases, hydrogen peroxide producing oxidative enzymes and others, as well as the extensive and complex synergistic effects among these enzymes are reviewed.

关 键 词：白腐菌 木素降解酶 过氧化物酶 催化机制 协同作用 

分 类 号：TS743.14[轻工技术与工程—制浆造纸工程]