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Huber, C. ; Preis, M.* ; Harvey, P.J.* ; Grosse, S.D.* ; Letzel, T.* ; Schröder, P.

Emerging pollutants and plants - metabolic activation of diclofenac by peroxidases.

Chemosphere 146, 435-441 (2016)
Postprint DOI PMC
Open Access Green
Human pharmaceuticals and their residues are constantly detected in our waterbodies, due to poor elimination rates, even in the most advanced waste water treatment plants. Their impact on the environment and human health still remains unclear. When phytoremediation is applied to aid water treatment, plants may transform and degrade xenobiotic contaminants through phase I and phase II metabolism to more water soluble and less toxic intermediates. In this context, peroxidases play a major role in activating compounds during phase I via oxidation. In the present work, the ability of a plant peroxidase to oxidize the human painkiller diclofenac was confirmed using stopped flow spectroscopy in combination with LC-MS analysis. Analysis of an orange colored product revealed the structure of the highly reactive Diclofenac-2,5-Iminoquinone, which may be the precursor of several biological conjugates and breakdown products in planta.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Diclofenac ; Iminoquinone ; Lc-ms ; Peroxidase ; Stopped Flow Spectroscopy; Typha-latifolia; Drinking-water; Oxidation; Horseradish; Fate; Myeloperoxidase; Identification; Gemfibrozil; Generation; Responses
Sprache
Veröffentlichungsjahr 2016
HGF-Berichtsjahr 2016
ISSN (print) / ISBN 0045-6535
e-ISSN 1879-1298
Zeitschrift Chemosphere
Quellenangaben Band: 146, Heft: , Seiten: 435-441 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Kidlington, Oxford
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Comparative Microbiome Analysis (COMI)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504700-003
DOI 10.1016/j.chemosphere.2015.12.059
WOS ID WOS:000369457000052
Scopus ID 84959236066
PubMed ID 26741549
Erfassungsdatum 2016-01-11
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