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Updated: Jun 23, 2026

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
Published on: May 10, 2013
[Biodegradation of di-n-butyl phthalate by Pseudomonas aeruginosa]
Wei-Zhong Wu1, Qing Zhu, Jing Feng
1College of Environment Sciences and Engineering, Peking University, Beijing 100871, China. wuweizhong@pku.edu.cn
Abstract:
A new small capacity-wide extraction method was proposed for detection of its biodegradation in water. Results showed that the halflife (t1/2) of di-n-butyl phthalate (DBP) biodegradation was 3.60 day when the concentration of DBP was 400 mg/L and the biomass concentration was 2 g/L. The biodegradation process conformed to the first-order kinetic model. Moreover, the whole degradation process could be divided into several steps: adsorption, desorption and degradation. Two metabolites of DBP degradation were identified as mono-butyl phthalate and phthalic acid by gas chromatography-mass spectrometry, which confirmed the dioxygenate process during the hydrolysis of DBP.
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