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Fostering the action of versatile peroxidase as a highly efficient biocatalyst for the removal of endocrine disrupting compounds

Paper ID Volume ID Publish Year Pages File Format Full-Text
33051 44954 2016 9 PDF Available
Title
Fostering the action of versatile peroxidase as a highly efficient biocatalyst for the removal of endocrine disrupting compounds
Abstract

•Versatile peroxidase was highly efficient on the removal of endocrine disruptors.•Response surface methodology was a useful tool for the removal optimization.•Different analytical techniques were used to investigate transformation products (TP).•The presence of dimers and trimers as TP was indicative of oxidative coupling.

Response surface methodology (RSM) was used to optimize the removal of five endocrine disrupting compounds (EDCs) by the enzyme versatile peroxidase (VP): bisphenol A (BPA), triclosan (TCS), estrone (E1), 17β-estradiol (E2) and 17α-ethinylestradiol (EE2). The optimal variables of enzyme activity (90–100 U L−1), sodium malonate (29–43 mM) and MnSO4 (0.8–1 mM) led to very high removal rates of the five pollutants (2.5–5.0 mg L−1 min−1). The structural elucidation of transformation products arising from the enzymatic catalysis of the EDCs was investigated by Gas Chromatography coupled to Mass Spectrometry (GC–MS) and Liquid Chromatography Electrospray Time-of-Flight Mass Spectrometry (LC-ESI-TOF-MS). The presence of dimers and trimers, indicative of oxidative coupling, was demonstrated.

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Publisher
Database: Elsevier - ScienceDirect
Journal: New Biotechnology - Volume 33, Issue 1, 25 January 2016, Pages 187–195
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
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