title: Di(2-ethylhexyl) phthalate biodegradation and denitrification by a Pseudoxanthomonas sp. strain.
abstract: A bacterial strain (designated as N4) of Pseudoxanthomonas was isolated from a denitrification biofilter reactor. This study examined its degradation capability of di(2-ethylhexyl) phthalate (DEHP) and its denitrification ability. All results showed that, strain N4 could use DEHP as a carbon and energy source. Strain N4 demonstrated good DEHP degradation ability over a broad pH and temperature range. The optimal temperature and pH for DEHP degradation were 32°C and 6.0, respectively. The kinetics of DEHP degradation by strain N4 were exponential in nature. Strain N4 showed denitrification ability and could reduce nitrate and nitrite but not with DEHP as its carbon source.
authors.affiliation: Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Civil Engineering, Beijing University of Technology, Beijing 100124, China.
authors.forename: Xuezheng
authors.initials: X
authors.lastname: Meng
authors.affiliation: Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Civil Engineering, Beijing University of Technology, Beijing 100124, China; State Nuclear Electric Power Planning Design & Research Institute, Beijing 100085, China.
authors.forename: Guilong
authors.initials: G
authors.lastname: Niu
authors.affiliation: Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Civil Engineering, Beijing University of Technology, Beijing 100124, China.
authors.forename: Weiming
authors.initials: W
authors.lastname: Yang
authors.affiliation: Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Civil Engineering, Beijing University of Technology, Beijing 100124, China. Electronic address: caxish@163.com.
authors.forename: Xiangsheng
authors.initials: X
authors.lastname: Cao
mesh_terms: D001673:Biodegradation, Environmental; D058440:Denitrification; D004051:Diethylhexyl Phthalate / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D010802:Phylogeny; D013696:Temperature; D044166:Xanthomonadaceae / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism*
chemical_list: D004051:Diethylhexyl Phthalate
keywords: Biodegradation; Denitrification; Isolation; Phthalate; Pseudoxanthomonas