title: Degradation of di-n-butyl phthalate by newly isolated Ochrobactrum sp.
abstract: A gram negative isolate designated JDC-41 was obtained from river sludge using mixtures of phthalate esters as the sole source and energy. The isolate was identified as Ochrobactrum sp. based on its 16S rRNA gene sequence. Over 87% of supplied di-n-butyl phthalate (DBP) was degraded by JDC-41 in a pH neutral mineral salts medium at 30 degrees C within 48 h. Increased DBP (50-500 mg/L) in the culture correspondingly increased degradation half-life from 3.83 to 18.12 h. DBP induced cells more rapidly degraded DBP.
authors.affiliation: Department of Bioengineering, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan Province, 410083, China. xueling0714@yahoo.com.cn
authors.forename: Xue-ling
authors.initials: XL
authors.lastname: Wu
authors.forename: Yang-yang
authors.initials: YY
authors.lastname: Wang
authors.forename: Ren-xing
authors.initials: RX
authors.lastname: Liang
authors.forename: Qin-yun
authors.initials: QY
authors.lastname: Dai
authors.forename: Wei-liang
authors.initials: WL
authors.lastname: Chao
mesh_terms: D001483:Base Sequence; D003993:Dibutyl Phthalate / Q000378:metabolism*; D008969:Molecular Sequence Data; D042041:Ochrobactrum / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism*; D010968:Plasticizers / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D010968:Plasticizers; D014874:Water Pollutants, Chemical; D003993:Dibutyl Phthalate