title: Biodegradation kinetics of tetrahydrofuran, benzene, toluene, and ethylbenzene as multi-substrate by Pseudomonas oleovorans DT4.
abstract: The biodegradation kinetics of tetrahydrofuran, benzene (B), toluene (T), and ethylbenzene (E) were systematically investigated individually and as mixtures by a series of aerobic batch degradation experiments initiated by Pseudomonas oleovorans DT4. The Andrews model parameters, e.g., maximum specific growth rates (μmax), half saturation, and substrate inhibition constant, were obtained from single-substrate experiments. The interaction parameters in the sum kinetics model (SKIP) were obtained from the dual substrates. The μmax value of 1.01 for tetrahydrofuran indicated that cell growth using tetrahydrofuran as carbon source was faster than the growth on B (μmax, B = 0.39) or T (μmax, T = 0.39). The interactions in the dual-substrate experiments, including genhancement, inhibition, and co-metabolism, in the mixtures of tetrahydrofuran with B or T or E were identified. The degradation of the four compounds existing simultaneously could be predicted by the combination of SKIP and co-metabolism models. This study is the first to quantify the interactions between tetrahydrofuran and BTE.
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. biotchen@126.com.
authors.forename: Dong-Zhi
authors.initials: DZ
authors.lastname: Chen
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. dinghaoren1234@163.com.
authors.forename: Yun-Feng
authors.initials: YF
authors.lastname: Ding
authors.affiliation: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China. zyy0616@163.com.
authors.forename: Yu-Yang
authors.initials: YY
authors.lastname: Zhou
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. yejiexu@zjut.edu.cn.
authors.forename: Jie-Xu
authors.initials: JX
authors.lastname: Ye
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. jchen@zjut.edu.cn.
authors.forename: Jian-Meng
authors.initials: JM
authors.lastname: Chen
mesh_terms: D001555:Benzene Derivatives / Q000378:metabolism*; D001673:Biodegradation, Environmental; D004785:Environmental Pollutants / Q000378:metabolism*; D005663:Furans / Q000378:metabolism*; D007700:Kinetics; D044204:Pseudomonas oleovorans / Q000378:metabolism*; D012997:Solvents / Q000378:metabolism*; D013379:Substrate Specificity
chemical_list: D001555:Benzene Derivatives; D004785:Environmental Pollutants; D005663:Furans; D012997:Solvents; C018674:tetrahydrofuran