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- Title
Rapid and efficient degradation of bisphenol A by chloroperoxidase from Caldariomyces fumago: product analysis and ecotoxicity evaluation of the degraded solution.
- Authors
Dong, Xiaobo; Li, Haiyun; Jiang, Yucheng; Hu, Mancheng; Li, Shuni; Zhai, Quanguo
- Abstract
Objectives: To degrade enzymatically bisphenol A (BPA) that causes serious environmental concerns and is difficult to be degraded by chemical or physical methods. Results: BPA (150 mg l) was completely degraded by chloroperoxidase (CPO)/HO within 7 min at room temperature, atmospheric pressure with the enzyme at 6 μg CPO ml. The degradation products were identified by HPLC-MS, which suggested involvement of multiple steps. Enzymatic treatment followed by existing bioremediation technologies (activated sludge) enhanced removal of COD from 9 to 54 %. Using an ecotoxicity evaluation with Chlorella pyrenoidosa, the degradation products had a lower toxicity than BPA. Conclusion: BPA can be degraded rapidly and efficiently under mild conditions with chloroperoxidase at 6 μg ml. The degradation products had a lower toxicity than BPA.
- Subjects
BISPHENOL A; CHLOROPEROXIDASE; POLLUTION; ATMOSPHERIC pressure; BIOREMEDIATION
- Publication
Biotechnology Letters, 2016, Vol 38, Issue 9, p1483
- ISSN
0141-5492
- Publication type
Article
- DOI
10.1007/s10529-016-2137-9