Biotransformation of chloramphenicol by white-rot-fungi Trametes versicolor under cadmium stress
Tan, Zewen (South China Agricultural University. Joint Institute for Environment & Education)
Losantos, Diana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Li, Yongtao (South China Agricultural University. Joint Institute for Environment & Education)
Sarrà i Adroguer, Montserrat (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Date:	2023
Description:	8 pàg.
Abstract:	The recalcitrant chloramphenicol (CAP) combined with heavy metals cadmium (Cd) commonly co-existed in the environment, posing threat to environment health. The capacity of Trametes versicolor to remove/biodegrade CAP in air-pulse fluidized-bed reactor was evaluated, even under Cd stress. T. versicolor could remove 44 % CAP of 5 mg/L in 15 days, even 51 % CAP under 1 mg/L Cd stress. Sustained Cd stress inhibited CAP biodegradation and Cd removal in a 5-batches of a 5-days cycle sequential batch reactor. Nine transformation products and two novel pathways were proposed, with initial multi-step transformation reaction into CP2 and allylic alcohol, respectively. Furthermore, the main mechanism of Cd removal by T. versicolor was extracellular surface bioadsorption and intracellular accumulation. This study filled the gap of the mechanism of simultaneous CAP removal/biodegradation and Cd removal by white-rot fungi T. versicolor, which offer a theoretical basis for future application of biological removal of CAP containing wastewater.
Grants:	Agencia Estatal de Investigación PID2019-103989RB-100
Note:	Altres ajuts: acords transformatius de la UAB
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Biotransformation pathway ; Cadmium stress ; Chloramphenicol biotransformation ; Fluidized-bed reactor ; Trametes versicolor ; SDG 7 - Affordable and Clean Energy
Published in:	Bioresource Technology, Vol. 369 (Feb. 2023) , art. 128508, ISSN 1873-2976

DOI: 10.1016/j.biortech.2022.128508
PMID: 36549514

8 p, 3.3 MB

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Articles > Research articles
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