The remediation of sulfonamides from the environment by Pleurotus eryngii mycelium. Efficiency, products and mechanisms of mycodegradation

The objective of the study was to assess the applicability of the mycelium obtained from the in vitro cultures of nontoxic bracket fungus, Pleurotus eryngii, to sulfonamides mycodegradation. Samples containing one of the six selected sulfonamides, sulfanilamide derivatives, were incubated with the m...

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Published in:Chemosphere (Oxford) Vol. 262; p. 128026
Main Authors: Baran, Wojciech, Adamek, Ewa, Włodarczyk, Anna, Lazur, Jan, Opoka, Włodzimierz, Muszyńska, Bożena
Format: Journal Article
Language:English
Published: Elsevier Ltd 01.01.2021
Subjects:
Environmental treatment
fungi
molecular weight
mycelium
Mycelium from in vitro culture
Mycodegradation
Pleurotus eryngii
remediation
sugars
sulfanilamide
Sulfonamides remediation
Sulfonamides remediation
Environmental treatment
Pleurotus eryngii
Mycelium from in vitro culture
Mycodegradation
ISSN:0045-6535, 1879-1298, 1879-1298
Online Access:Get full text
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Summary:The objective of the study was to assess the applicability of the mycelium obtained from the in vitro cultures of nontoxic bracket fungus, Pleurotus eryngii, to sulfonamides mycodegradation. Samples containing one of the six selected sulfonamides, sulfanilamide derivatives, were incubated with the mycelium of P. eryngii for 7 and 14 days in vitro. Subsequently, change in the sulfonamide concentration was assessed in the samples using the UPLC-QTof. The transformation products were identified based on monoisotopic molecular mass and fragmentation spectra. The studied sulfonamides did not inhibit the growth of P. eryngii mycelium in the in vitro cultures. In addition, a considerable reduction of sulfonamide concentration was observed in all the incubated samples (from 73.7 ± 8.3% to 99.8 ± 0.3%). In the case of three sulfonamides, the reduction in concentration >90% occurred after 7 days of incubation. However, the transformation of sulfonamides was partially caused by their degradation to simpler organic compounds. After incubation, the products of condensation of sulfonamides with formyl, acyl, and sugar groups, and amino acid-derived compounds were identified in the samples. This indicated the partially reversible nature of the mycodegradation process. [Display omitted] •P. eryngii used in the sulfonamides (SNs) mycodegradation in vitro.•A significant reduction in SNs concentration after incubation with P. eryngii.•Transformation of SNs partially caused by the degradation using mushroom enzymes.•Identified amino acid-derived and condensation products of SNs with organic groups.
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ISSN:0045-6535
1879-1298
1879-1298
DOI:10.1016/j.chemosphere.2020.128026