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Oxidation of Flame Retardant Tetrabromobisphenol A by a Biocatalytic Nanofiber of Chloroperoxidase

Author

Listed:
  • José Luis García-Zamora

    (Centro de Química, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico)

  • Verónica Santacruz-Vázquez

    (Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico)

  • Miguel Ángel Valera-Pérez

    (Departamento de Investigaciones en Ciencias Agrícolas, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico)

  • María Teresa Moreira

    (Department of Chemical Engineering, CRETUS Institute, Universidade de Santiago de Compostela, Santiago de Compostela, E-15782 Galicia, Spain)

  • Diana L. Cardenas-Chavez

    (Tecnologico de Monterrey, School of Engineering and Science, Atlixcayotl 5718, Reserva Territorial Atrixcayotl, Puebla 72570, Mexico)

  • Mireya Tapia-Salazar

    (Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Pedro de Alba, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico)

  • Eduardo Torres

    (Centro de Química, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico)

Abstract

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.

Suggested Citation

  • José Luis García-Zamora & Verónica Santacruz-Vázquez & Miguel Ángel Valera-Pérez & María Teresa Moreira & Diana L. Cardenas-Chavez & Mireya Tapia-Salazar & Eduardo Torres, 2019. "Oxidation of Flame Retardant Tetrabromobisphenol A by a Biocatalytic Nanofiber of Chloroperoxidase," IJERPH, MDPI, vol. 16(24), pages 1-15, December.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:24:p:4917-:d:294391
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    References listed on IDEAS

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    1. Osnat Segev & Ariel Kushmaro & Asher Brenner, 2009. "Environmental Impact of Flame Retardants (Persistence and Biodegradability)," IJERPH, MDPI, vol. 6(2), pages 1-14, February.
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