摘要
为了降低木质纤维素的酶解成本,提高酶解效果,采用表面活性剂改善异相反应.从酶解体系的扩散性质、底物中木质素含量及酶解过程中的酶活力三方面考察了聚乙二醇对木质纤维素酶解的促进作用.结果表明聚乙二醇能改善体系扩散性质、抑制酶的无效吸附及稳定酶活力,用作木质纤维素酶解的促进剂可减少酶用量,降低成本.
Cellulase hydrolysis is an important process of ethanol production from lignocellulose.PEG（polyethylene glycol） was used to improve the heterogeneous reaction,and its effect was studied through three aspects： diffusion property of the system,lignin content in the substrate and the cellulase activity during hydrolysis.The results show that PEG can reduce react resistance,improve diffusion behavior,prevent noneffetive adsorption of enzyme and stabilize enzyme activity,so the enzyme loading decreased and the cost reduced.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第10期121-123,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家高技术研究发展计划资助项目(2007AA10074)
广东省自然科学基金研究团队项目(E06200692)
关键词
纤维素
木质素
酶解
扩散
聚乙二醇
cellulase
lignin
enzymatic hydrolysis
diffusion
polyethylene glycol
