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	An intensified degradation of phenanthrene with macroporous alginate-lignin beads immobilized Phanerochaete chrysosporium
	Zhang, Kun ; Xu, Yuanyuan ; Hua, Xiufu ; Han, Huilong ; Wang, Jiannan ; Wang, Jun ; Liu, Yongmin ; Liu, Zheng
	2010-05-07 ; 2010-05-07
关键词	Ca-alginate bead diffusion lignin adsorption biodegradation phenanthrene POLYCYCLIC AROMATIC-HYDROCARBONS WHITE-ROT FUNGI CALCIUM ALGINATE GEL BEADS TRAMETES-VERSICOLOR ACTIVATED CARBON METAL REMOVAL SORPTION BIOREMEDIATION ACID Biotechnology & Applied Microbiology Engineering, Chemical
中文摘要	Macroporous Ca-alginate (MCA) beads and macroporous Ca-alginate-lignin (MCAL) beads were prepared to immobilize Phanerochaete chrysosporium for the degradation of phenanthrene. The diameters of MCA and MCAL beads were 3.8 +/- 0.2 and 4.1 +/- 0.4 mm, respectively, while the diameters of macropores within them were determined to be 10-40 mu m. Compared with conventional Ca-alginate (CA) beads, MCA beads prepared with 5% CaCO3 granules of 15 mu m as porogenic diluent yielded a 1.5-fold increase in the diffusivity of glucose, an index of mass transfer performance. This difference was magnified to 2.2-fold when CA and MCA beads were applied to the cultivation of P. chrysosporium pre-cultivated for 2 days. Moreover, the net increase in the biomass of P chrysosporium immobilized in MCAL beads was 1.1-, 1.7- and 3.4-fold than that immobilized in MCA beads, CA beads and in free form, respectively, within 8-day cultivation. The presence of lignin in MCAL beads led to a 28.7-fold increase in the phenanthrene adsorption capacity compared with that by MCA beads. The degradation of phenanthrene was also increased from 28.2%(MCA) to 42.3% (MCAL) after 4-day degradation. The enhanced growth and degradation indicated a high potential of MCAL-immobilized P. chrysosporium as an effective microbial model for an intensified biodegradation of phenanthrene. (C) 2008 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/17714]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, Kun,Xu, Yuanyuan,Hua, Xiufu,et al. An intensified degradation of phenanthrene with macroporous alginate-lignin beads immobilized Phanerochaete chrysosporium[J],2010, 2010.
APA	Zhang, Kun.,Xu, Yuanyuan.,Hua, Xiufu.,Han, Huilong.,Wang, Jiannan.,...&Liu, Zheng.(2010).An intensified degradation of phenanthrene with macroporous alginate-lignin beads immobilized Phanerochaete chrysosporium..
MLA	Zhang, Kun,et al."An intensified degradation of phenanthrene with macroporous alginate-lignin beads immobilized Phanerochaete chrysosporium".(2010).

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