TY - JOUR
T1 - Atrazine biodegradation in soil by Aspergillus niger
AU - Herrera-Gallardo, Brenda E.
AU - Guzmán-Gil, Raymundo
AU - Colín-Luna, José A.
AU - García-Martínez, Julio C.
AU - León-Santiesteban, Héctor H.
AU - González-Brambila, Oscar M.
AU - González-Brambila, Margarita M.
N1 - Funding Information:
The authors are grateful to Consejo Nacional de Ciencia y Tecnología (México) for supporting this research.
Publisher Copyright:
© 2020 Canadian Society for Chemical Engineering
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - Atrazine is a commonly used herbicide in the Mexican agricultural industry even though it is hazardous for human and animal health. Before reaching its mineralization, this herbicide infiltrates through soil, producing toxic compounds and contaminating groundwater sources. Considering that Aspergillus niger (A. niger) is a filamentous fungus that degrades pectin, cellulose, and other organic polymers, this study analyzes its use to accelerate atrazine mineralization under optimal parameters of temperature, soil humidity, and a co-substrate for bio-stimulation. Different atrazine concentrations were used, from 0 ppm to 1000 ppm, in order to measure the growth of its filaments. Glucose and Opuntia ficus indica residues were analyzed as co-substrates for A. niger biodegradation improvement. A DOE analysis was used to establish optimal treatment conditions. The findings in this study show that a 10 wt% of O. ficus indica as a co-substrate with 80% humidity achieved atrazine biodegradation in the order of 70% to 75% in 6 days.
AB - Atrazine is a commonly used herbicide in the Mexican agricultural industry even though it is hazardous for human and animal health. Before reaching its mineralization, this herbicide infiltrates through soil, producing toxic compounds and contaminating groundwater sources. Considering that Aspergillus niger (A. niger) is a filamentous fungus that degrades pectin, cellulose, and other organic polymers, this study analyzes its use to accelerate atrazine mineralization under optimal parameters of temperature, soil humidity, and a co-substrate for bio-stimulation. Different atrazine concentrations were used, from 0 ppm to 1000 ppm, in order to measure the growth of its filaments. Glucose and Opuntia ficus indica residues were analyzed as co-substrates for A. niger biodegradation improvement. A DOE analysis was used to establish optimal treatment conditions. The findings in this study show that a 10 wt% of O. ficus indica as a co-substrate with 80% humidity achieved atrazine biodegradation in the order of 70% to 75% in 6 days.
KW - Aspergillus niger
KW - atrazine
KW - biodegradation
KW - Opuntia ficus indica
UR - http://www.scopus.com/inward/record.url?scp=85099747484&partnerID=8YFLogxK
U2 - 10.1002/cjce.23924
DO - 10.1002/cjce.23924
M3 - Artículo
AN - SCOPUS:85099747484
SN - 0008-4034
VL - 99
SP - 932
EP - 946
JO - Canadian Journal of Chemical Engineering
JF - Canadian Journal of Chemical Engineering
IS - 4
ER -
