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Immobilization of laccase on magnetic bimodal mesoporous carbon and the application in the removal of phenolic compounds

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WOS被引频次:120
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成果类型:
期刊论文
作者:
Yuanyuan Liu;Zhuotong Zeng;Guangming Zeng;Lin Tang;Ya Pang;Zhen Li;Can Liu;Xiaoxia Lei;Mengshi Wu;Pinyun Ren;Zhifeng Liu;Ming Chen;Gengxin Xie
通讯作者:
Zeng, G.(zgming@hnu.edu.cn)
作者机构:
[Zhen Li; Guangming Zeng; Yuanyuan Liu; Ming Chen; Gengxin Xie; Xiaoxia Lei; Zhifeng Liu; Lin Tang; Ya Pang; Mengshi Wu; Can Liu] College of Environmental Science and Engineering, Hunan University, Changsha 410082, Hunan, China
[Zhen Li; Guangming Zeng; Yuanyuan Liu; Ming Chen; Gengxin Xie; Xiaoxia Lei; Zhifeng Liu; Lin Tang; Ya Pang; Mengshi Wu; Can Liu] Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, Hunan, China
[Zhuotong Zeng] State Key Laboratory of Medical Genetics, Central South University, Changsha 410078, China
[Pinyun Ren] Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha 410082, China
[Pinyun Ren] College of Physics and Microelectronics Science, Hunan University, Changsha 410082, China
通讯机构:
[Zeng, Guangming] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
Immobilization;Laccase;Magnetic mesoporous carbon;Phenol removal
期刊:
BIORESOURCE TECHNOLOGY
ISSN:
0960-8524
年:
2012
卷:
115
页码:
21-26
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:生物学与生物化学;WOS学科类别:Agricultural Engineering;Biotechnology & Applied Microbiology;Energy & Fuels
入藏号:
WOS:000305379000005;EI:20122215070212;PMID:22137272
基金类别:
Fundamental Research Funds for the Central Universities, Hunan University; Program for Changjiang Scholars and Innovative Research Team in University [IRT0719]; National Natural Science Foundation of China [50978088, 51039001, 50608029]; Hunan Key Scientific Research Project [2009FJ1010]; Hunan Provincial Natural Science Foundation of China [10JJ7005]; Hunan Provincial Innovation Foundation For Postgraduate [CX2009B080, CX2010B157]; Program for New Century Excellent Talents in University [NCET-08-0181]; Hunan University Graduate Education Innovation Project [531107011019]
机构署名:
本校为其他机构
院系归属:
生命科学学院(医学遗传学国家重点实验室)
摘要:
A novel magnetically separable laccase immobilized system was constructed by adsorbing laccase into bimodal carbon-based mesoporous magnetic composites (CMMC). A large adsorption capacity (491.7 mg g(-1)), excellent activity recovery (91.0%) and broader pH and temperature profiles than free laccase have been exhibited by the immobilized laccase. Thermal stability was enhanced to a great extent and operational stability was increased to a certain extent. The shift of kinetic parameters indicated affinity change between enzyme and substrate. Application of the immobilized system in phenol and p-chlorophenol removal was investigated in a batch system. Adsorption effects of the support were responsible for the quick removal rate in the first hour, and up to 78% and 84% of phenol and p-chlorophenol were removed in the end of the reaction, respectively, indicating that the magnetic bimodal mesoporous carbon is a promising carrier for both immobilization of laccase and further application in phenol removal. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
参考文献:
Kennedy LJ, 2007, CHEM ENG J, V132, P279, DOI 10.1016/j.cej.2007.01.009
Meijer L, 2008, ENVIRON SCI TECHNOL, V42, P3428, DOI 10.1021/es702446p
Zeng GM, 2011, BIORESOURCE TECHNOL, V102, P5905, DOI 10.1016/j.biortech.2011.02.088
Rekuc A, 2009, PROCESS BIOCHEM, V44, P191, DOI 10.1016/j.procbio.2008.10.007
Wu J, 2006, PROCESS BIOCHEM, V41, P44, DOI 10.1016/j.procbio.2005.03.065

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