摘要
在碱性液体培养条件下 ( pH≈ 1 0 .5 ) ,研究复合碳源共代谢最佳综合条件下嗜碱性木质素降解细菌 6号菌株产酶、降解能力及菌株的生长状况 .结果显示 ,虫漆酶 (Laccase)在培养的第 4天酶活达到最高值 2 91 5 37U/L、锰依赖过氧化物酶 (MnP)在培养的第 8天酶活达到最高值 1 1 5 2 88U/L ,培养 1 0d麦草中木质素降解 4 9 84 % .同时通过扫描电镜分析探讨了 6号菌株降解木质素的微观过程 ,证明了
The article researched enzymes production、the degradation rate of lignin and strain growth of alkaliphilic ligninolytic bacteria strain No.6 in alkaline liquid medium (pH≈10.5) with compounded carbons. The results showed that the highest activities of laccase and MnP were 2915 37U/L(4th d) and 1152 88U/L(8 th d), respectively, and the strain degraded 49 84% lignin of wheat straw during ten days cultivation. The changes of ultrastructure of wheat straw caused by strain No.6 attack were investigated with SEM (scan electron microscopy).
出处
《环境科学》
EI
CAS
CSCD
北大核心
2002年第1期70-73,共4页
Environmental Science
基金
国家自然科学基金资助课题 (2 96 770 12 )
