RT Journal Article
T1 Oxidation of flame retardant Tetrabromobisphenol A by a biocatalytic nanofiber of chloroperoxidase
A1 García Zamora, José Luis
A1 Santacruz Vázquez, Verónica
A1 Valera Pérez, Miguel Ángel
A1 Moreira Vilar, María Teresa
A1 Cárdenas Chávez, Diana
A1 Tapia Salazar, Mireya
A1 Torres, Eduardo
K1 Environmental biocatalysis
K1 Flame retardant degradation
K1 Micropollutants
AB Background: Tetrabromobisphenol (TBBPA), a flame retardant compound, is considered a ubiquitous pollutant, with potential impact on the environment and human health. Several technologies have been applied to accelerate its degradation and minimize environmental impacts. Due to its aromaticity character, peroxidase enzymes may be employed to carry out its transformation in mild conditions. Therefore, the purpose of this work was to determine the capacity of the enzyme chloroperoxidase (CPO) to oxidize TBBPA in several water samples. Methods: The oxidation capacity of CPO was evaluated in catalytic conditions using water samples from surface and groundwater, as well as effluents from wastewater treatment plants. The biocatalytic performance of CPO was improved due to its immobilization on nanofibers composed of polyvinyl alcohol and chitosan (PVA/chitosan). Results: Free and immobilized CPO were able to transform more than 80% in short reaction times (60 min); producing more biodegradable and less toxic products. Particularly, the immobilized enzyme was catalytically active in a wider range of pH than the free enzyme with the possibility of reusing it up to five times. Conclusions: The biocatalytic oxidation of TBBPA under environmental conditions is highly efficient, even in complex media such as treated effluents of wastewater treatment plants
PB MDPI
SN 1661-7827
YR 2019
FD 2019
LK http://hdl.handle.net/10347/22163
UL http://hdl.handle.net/10347/22163
LA eng
NO García-Zamora, J.L.; Santacruz-Vázquez, V.; Valera-Pérez, M.Á.; Moreira, M.T.; Cardenas-Chavez, D.L.; Tapia-Salazar, M.; Torres, E. (2019). Oxidation of Flame Retardant Tetrabromobisphenol A by a Biocatalytic Nanofiber of Chloroperoxidase. Int. J. Environ. Res. Public Health , 16(24), 4917. doi: 10.3390/ijerph16244917
NO This research was funded by belongs to CRETUS and the Galician Competitive Research Group ED431C-2017/29 (co-funded by FEDER) and would like to thank the support granted by Spanish Ministry of Science and Innovation: MODENA Project CTQ2016-79461-R (MT MOREIRA), co-funded by FEDER
DS Minerva
RD 28 abr 2026