title: Biodegradation of a phthalate plasticizer, di-isononyl phthalate (DINP), by Sphingobium chungbukense.
abstract: In this study, di-isononyl phthalate (DINP) was efficiently degraded by Sphingobium chungbukense KCTC 2955. The optimal conditions for DINP (100 mg L(-1)) degradation by S. chungbukense in a mineral salts medium were found to be pH 7.0, 30 degrees C, and stirring at 200 rpm. The maximum specific rate of DINP degradation was found to be concentration dependent, with a maximum of 4.12 mg DINP L(-1) h(-1). DINP was transformed rapidly by S. chungbukense, with the formation of monoisononyl phthalate (MIP) and phthalic acid, which subsequently degraded further. These results highlight the potential of this bacterium for removing DINP-contaminated waste in the environment.
authors.affiliation: School of Life Science, Chungbuk National University, 410 Sungbong-Ro, Heungduk-Gu, Cheongju, 361-763, South Korea.
authors.forename: Jae-Min
authors.initials: JM
authors.lastname: Park
authors.forename: Miri
authors.initials: M
authors.lastname: Jeon
authors.forename: Eun-Suk
authors.initials: ES
authors.lastname: Lim
authors.forename: Hyun-Ju
authors.initials: HJ
authors.lastname: Um
authors.forename: Young-Chang
authors.initials: YC
authors.lastname: Kim
authors.forename: Jiho
authors.initials: J
authors.lastname: Min
authors.forename: Yang-Hoon
authors.initials: YH
authors.lastname: Kim
mesh_terms: D001673:Biodegradation, Environmental; D004785:Environmental Pollutants / Q000737:chemistry / Q000378:metabolism*; D010795:Phthalic Acids / Q000737:chemistry / Q000378:metabolism*; D010968:Plasticizers / Q000737:chemistry / Q000378:metabolism*; D042301:Sphingomonadaceae / Q000378:metabolism*
chemical_list: D004785:Environmental Pollutants; D010795:Phthalic Acids; D010968:Plasticizers; C012125:diisononyl phthalate
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