Analysis and behavior of colistin during anaerobic fermentation.
Bioresour Technol
; 170: 303-309, 2014 Oct.
Article
em En
| MEDLINE
| ID: mdl-25151074
ABSTRACT
A new analytical method for the determination of colistin in fermenter samples was developed followed by a study on the behavior of this substance during anaerobic fermentation. Analysis of colistin A and B was carried out by liquid chromatography-tandem mass spectrometry. Separation of the analytes was performed on a Security Guard column (4×3mm). Fourteen fermentation tests in batch as well as in continuous reactors were carried out. After 44days of anaerobic digestion of cattle manure, initially spiked with 500mg/kg of colistin sulfate, a considerable decrease of the colistin concentration to less than 1mg/kg could be observed. Furthermore, the daily production of biogas and methane was measured. A correlation between gas production and colistin concentration could not be determined. However, an increase of 10% of the cumulative methane production was observed in those fermenters spiked with an initial bolus of 500mg/kg colistin.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Colistina
/
Fermentação
/
Esterco
/
Metano
Limite:
Animals
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article