Investigation into the causes for the changed biodegradation process of dissolved pyrene after addition of hydroxypropyl-beta-cyclodextrin (HPCD)

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	Investigation into the causes for the changed biodegradation process of dissolved pyrene after addition of hydroxypropyl-beta-cyclodextrin (HPCD)
	Zhang, Zhen-Xuan ; Zhu, Ya-Xian ; Li, Chun-Mao ; Zhang, Yong ; Zhu YX(朱亚先)
刊名	http://dx.doi.org/10.1016/j.jhazmat.2012.10.011
	2012-12
关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ENHANCED BIODEGRADATION CONTAMINATED SOIL CELL-SURFACE PHENANTHRENE SOLUBILIZATION PAHS BIOAVAILABILITY NAPHTHALENE EXTRACTION
英文摘要	Natural Science Foundation of China (NSFC) [21075102, 21177102, 41121091]; State Key Lab of Environ. Chem. and Ecotoxico, Chinese Academy of Sciences [KF2010-15]; Bioremediation of surface waters contaminated with polycyclic aromatic hydrocarbons (PAHs) is a serious problem, often limited by the low bioavailability of contaminants as a result of their low aqueous solubility. In this study, we studied the influence of hydroxypropyl-beta-cyclodextrin (HPCD) addition on the biodegradation of dissolved pyrene in aqueous solution. Five types of unidentified bacterial strains were used with a concentration of pyrene under its solubility limit. The reduction of pyrene content was monitored during the biodegradation process using synchronous fluorimetry. The presence of HPCD changed the rate of pyrene biodegradation by microorganisms due to the formation of an inclusion complex between pyrene and HPCD. The hydrophobicity and the emulsifying activity of microorganisms relative to their biodegrading capacity were investigated. The results indicated that hydrophobicity and emulsifying activity of the microorganisms were important factors that can influence the biodegradation process. The hydrophobicity and emulsifying activity were strongly correlated with the biodegrading capacity of the microorganisms toward pyrene in the presence of solubilizing agents or organized media. (C) 2012 Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/62128]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhang, Zhen-Xuan,Zhu, Ya-Xian,Li, Chun-Mao,et al. Investigation into the causes for the changed biodegradation process of dissolved pyrene after addition of hydroxypropyl-beta-cyclodextrin (HPCD)[J]. http://dx.doi.org/10.1016/j.jhazmat.2012.10.011,2012.
APA	Zhang, Zhen-Xuan,Zhu, Ya-Xian,Li, Chun-Mao,Zhang, Yong,&朱亚先.(2012).Investigation into the causes for the changed biodegradation process of dissolved pyrene after addition of hydroxypropyl-beta-cyclodextrin (HPCD).http://dx.doi.org/10.1016/j.jhazmat.2012.10.011.
MLA	Zhang, Zhen-Xuan,et al."Investigation into the causes for the changed biodegradation process of dissolved pyrene after addition of hydroxypropyl-beta-cyclodextrin (HPCD)".http://dx.doi.org/10.1016/j.jhazmat.2012.10.011 (2012).