title: Kinetics of bisphenol A degradation by Sphingomonas paucimobilis FJ-4.
abstract: A chemostat was operated to characterize degradation of bisphenol A by Sphingomonas paucimobilis FJ-4. The chemostat at 30°C was fed with a medium containing 150 mg L(-1) of BPA as the sole carbon and energy source. At the short cell retention time of 8 h, the bacterial cells were washed out from the chemostat. At long cell retention times of 12, 16, 24, and 48 h, steady-states of the bacterial growth on BPA degradation were achieved after a lag time of 16-57 h. A mathematical model was applied to evaluate the BPA degradation ability of strain FJ-4. The maximum specific degradation rate, the half saturation constant, the cell yield, and the specific decay rate were estimated respectively as 0.46 mg-BPA (mg-VSS h)(-1), 13.1 mg L(-1), 0.39 mg-VSS mg-BPA(-1), and 0.0014 h(-1).
authors.affiliation: Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Fujiwara
authors.affiliation: Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. Electronic address: soda@see.eng.osaka-u.ac.jp.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Soda
authors.affiliation: Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
authors.forename: Masanori
authors.initials: M
authors.lastname: Fujita
authors.affiliation: Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
authors.forename: Michihiko
authors.initials: M
authors.lastname: Ike
mesh_terms: D001559:Benzhydryl Compounds / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D007700:Kinetics; D010636:Phenols / Q000378:metabolism*; D020578:Sphingomonas / Q000254:growth & development / Q000378:metabolism*; D013997:Time Factors; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D010636:Phenols; C006780:bisphenol A; D000098826:Bisphenol A Compounds
keywords: Biodegradation kinetics; Bisphenol A; Chemostat; Endocrine disruptors; Monod equation