Home
Resources
Publications
Biodegradation of Sulfamethazine by Trametes Versicolor: Removal From Sewage Sludge and Identification of Intermediate Products by UPLC-QqTOF-MS

Biodegradation of Sulfamethazine by Trametes Versicolor: Removal From Sewage Sludge and Identification of Intermediate Products by UPLC-QqTOF-MS

Ma Jesús García-Galán, Carlos E Rodríguez-Rodríguez, Teresa Vicent, Gloria Caminal, M Silvia Díaz-Cruz, Damià Barceló

Sci Total Environ. 2011 Nov 15;409(24):5505-12.

PMID: 21944200

Abstract:

Degradation of the sulfonamide sulfamethazine (SMZ) by the white-rot fungus Trametes versicolor was assessed. Elimination was achieved to nearly undetectable levels after 20 h in liquid medium when SMZ was added at 9 mg L(-1). Experiments with purified laccase and laccase-mediators resulted in almost complete removal. On the other hand, inhibition of SMZ degradation was observed when piperonilbutoxide, a cytochrome P450-inhibitor, was added to the fungal cultures. UPLC-QqTOF-MS analysis allowed the identification and confirmation of 4 different SMZ degradation intermediates produced by fungal cultures or purified laccase: desulfo-SMZ, N4-formyl-SMZ, N4-hydroxy-SMZ and desamino-SMZ; nonetheless SMZ mineralization was not demonstrated with the isotopically labeled sulfamethazine-phenyl-13C6 after 7 days. Inoculation of T. versicolor to sterilized sewage sludge in solid-phase systems showed complete elimination of SMZ and also of other sulfonamides (sulfapyridine, sulfathiazole) at real environmental concentrations, making this fungus an interesting candidate for further remediation research.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1196157728	Sulfathiazole-(phenyl-13C6)		1196157-72-8	Price
AP1228182453	Sulfapyridine-(phenyl-13C6)		1228182-45-3	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: