Biodegradation of the carbofuran insecticide by Syncephalastrum racemosum

Authors

DOI:

https://doi.org/10.33448/rsd-v9i7.4932

Keywords:

Biodegradation; Carbofuran; Pesticides.

Abstract

Carbofuran (2.3-dihydro-2.2-dimethyl-benzofuranyl-N-methylcarbamate) is an insecticide belonging to the group of carbamates, widely used in pest control in crops with great commercial value, bioaccumulative and extremely toxic to the environment. An alternative to treat areas contaminated with pesticides is bioremediation, which consists of using microorganisms or their enzymes to remove persistent chemical compounds. Thus, the objective of this study was to determine the biodegradation of carbofuran, using the fungus Syncephalastrum racemosum, by evaluating fungal tolerance, enzymatic activity and quantifying residues by UV-Visible spectrophotometry. The results obtained showed that
S. racemosum presented best biodegradation capacity at 15 µg mL-1carbofuran concentration (93.02%), with IVCM values of 21.95 cm day-1, laccase (0.712 U mL-1) and lignin peroxidase (0.005 U mL-1), after 168 h incubation. Thus, the degradation rate in the 25 to 100 µg mL-1 range showed values of 12.66 to 75.58%, respectively. Based on these results, the fungus has great potential for use in the bioremediation, minimizing the impacts of this pesticide on the environment.

Author Biographies

Regiane Késsias de Sousa Lira, Universidade Federal do Rio de Janeiro

Programa de Pós-graduação em Tecnologia de Processos Químicos e Bioquímicos
Universidade Federal do Rio de Janeiro, UFRJ.

José Fábio França Orlanda, Universidade Estadual da Região Tocantina do Maranhão

Universidade Estadual da Região Tocantina do Maranhão, UEMASUL
Centro de Ciências Exatas, Naturais e Tecnológicas - CCENT
Laboratório de Biotecnologia Ambiental - LABITEC

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Published

16/06/2020

How to Cite

LIRA, R. K. de S.; ORLANDA, J. F. F. Biodegradation of the carbofuran insecticide by Syncephalastrum racemosum. Research, Society and Development, [S. l.], v. 9, n. 7, p. e824974932, 2020. DOI: 10.33448/rsd-v9i7.4932. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/4932. Acesso em: 23 nov. 2024.

Issue

Section

Exact and Earth Sciences