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Ampicillin Mineralization by Denitrifying Process: Kinetic and Metabolic Effects

Islas-García, Irasema ; Romo-Gómez, Claudia ; de María Cuervo-López, Flor

Applied biochemistry and biotechnology, 2017-11, Vol.183 (3), p.1049-1061 [Periódico revisado por pares]

New York: Springer US

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Título:
Ampicillin Mineralization by Denitrifying Process: Kinetic and Metabolic Effects
Autor: Islas-García, Irasema ; Romo-Gómez, Claudia ; de María Cuervo-López, Flor
Assuntos: Acetates - metabolism ; Acetic acid ; Amides ; Ampicillin ; Ampicillin - metabolism ; Ampicillin - pharmacology ; Anti-Bacterial Agents - metabolism ; Anti-Bacterial Agents - pharmacology ; Antibiotics ; Assaying ; Biochemistry ; Biotechnology ; Carbon/nitrogen ratio ; Chemistry ; Chemistry and Materials Science ; Consumption ; Denitrification ; Denitrification - drug effects ; Dose-Response Relationship, Drug ; Kinetics ; Metabolism ; Mineralization ; Minerals - metabolism ; Nitrate reduction ; Nitrates ; Oxidation ; Penicillin ; Sewage ; Sludge ; Substrates ; Wastewater ; Wastewater treatment ; β-Lactam antibiotics
É parte de: Applied biochemistry and biotechnology, 2017-11, Vol.183 (3), p.1049-1061
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
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Descrição: The impact of the antibiotic ampicillin (AMP) on the metabolic and kinetics of denitrification process as well as the sludge ability for oxidizing it was evaluated in batch assays. Denitrifying reference assays with acetate-C and nitrate-N (C/N ratio of 1.1) were conducted for establishing the metabolic and kinetic performance of the denitrifying sludge. Assays amended with 10 mg AMP-C L −1 were also performed. In reference assays, acetate and nitrate consumption efficiencies of 100% with a total conversion to HCO 3 − and N 2 were achieved within 1.5 h. When 10 mg AMP-C L −1 was added, total and simultaneous consumption of nitrate-N, acetate-C, and AMP-C was achieved within 12 h. The substrates were completely reduced to N 2 and oxidized to HCO 3 − , respectively. No nitrite-N was registered at the end of culture. AMP caused a reversible inhibitory effect on specific nitrate and acetate consumption and N 2 production rates. Complete consumption and mineralization of AMP associated to nitrate reduction to N 2 were achieved. This work provides the first evidences on the metabolic and kinetic performance of a denitrifying sludge exposed to AMP. These results might be considered for proposing useful wastewater treatments where β-Lactam antibiotics can be present.
Editor: New York: Springer US
Idioma: Inglês

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Ampicillin Mineralization by Denitrifying Process: Kinetic and Metabolic Effects

Islas-García, Irasema ; Romo-Gómez, Claudia ; de María Cuervo-López, Flor

New York: Springer US

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