Kinetics of bisphenol A degradation by Sphingomonas paucimobilis FJ-4

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...

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Bibliographic Details
Published in:Journal of bioscience and bioengineering 2016-09, Vol.122 (3), p.341-344
Main Authors: Fujiwara, Hitoshi, Soda, Satoshi, Fujita, Masanori, Ike, Michihiko
Format: Article
Language:English
Subjects:
Benzhydryl Compounds - metabolism
Biodegradation kinetics
Biodegradation, Environmental
Bioreactors
Bisphenol A
Chemostat
Endocrine disruptors
Kinetics
Monod equation
Phenols - metabolism
Sphingomonas - growth & development
Sphingomonas - metabolism
Time Factors
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Summary: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.
ISSN:1389-1723
1347-4421
DOI:10.1016/j.jbiosc.2016.02.015