Your browser doesn't support javascript.
loading
Aerobic cyanide degradation by bacterial isolates from cassava factory wastewater
Kandasamy, Sujatha; Dananjeyan, Balachandar; Krishnamurthy, Kumar; Benckiser, Gero.
Afiliação
  • Kandasamy, Sujatha; Tamil Nadu Agricultural University. Department of Agricultural Microbiology. Coimbatore. India
  • Dananjeyan, Balachandar; Tamil Nadu Agricultural University. Department of Agricultural Microbiology. Coimbatore. India
  • Krishnamurthy, Kumar; Tamil Nadu Agricultural University. Department of Agricultural Microbiology. Coimbatore. India
  • Benckiser, Gero; Justus Liebig University. Institute of Applied Microbiology. Giessen. Germany
Braz. J. Microbiol. ; 46(3): 659-666, July-Sept. 2015. ilus
Article em En | VETINDEX | ID: vti-2285
Biblioteca responsável: BR1.1
Localização: BR68.1
ABSTRACT
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..(AU)
Assuntos
Palavras-chave

Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Braz. J. Microbiol. Ano de publicação: 2015 Tipo de documento: Article

Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Braz. J. Microbiol. Ano de publicação: 2015 Tipo de documento: Article