Data/hora: 14/06/2024 01:22:54

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Aerobic cyanide degradation by bacterial isolates from cassava factory wastewater	
Autores: 	Kandasamy,Sujatha; Dananjeyan,Balachandar; Krishnamurthy,Kumar; Benckiser,Gero.	
Data: 	2015-09-01	
Ano: 	2015	
Palavras-chave: 	Cassava factory wastewater; Aerobic degradation; Cyanide degrading bacteria.	
Resumo: 	Ten bacterial strains that utilize cyanide (CN) as a nitrogen source were isolated from cassava factory wastewater after enrichment in a liquid media containing sodium cyanide (1 mM) and glucose (0.2% w/v). The strains could tolerate and grow in cyanide concentrations of up to 5 mM. Increased cyanide levels in the media caused an extension of lag phase in the bacterial growth indicating that they need some period of acclimatisation. The rate of cyanide removal by the strains depends on the initial cyanide and glucose concentrations. When initial cyanide and glucose concentrations were increased up to 5 mM, cyanide removal rate increased up to 63 and 61 per cent by Bacillus pumilus and Pseudomonas putida. Metabolic products such as ammonia and formate were detected in culture supernatants, suggesting a direct hydrolytic pathway without an intermediate formamide. The study clearly demonstrates the potential of aerobic treatment with cyanide degrading bacteria for cyanide removal in cassava factory wastewaters.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300659	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-838246320130516	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.46 n.3 2015	
Fonte: 	info:eu-repo/semantics/openAccess