Data/hora: 02/06/2024 19:04:42

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Heavy metal biosorption by chitin and chitosan isolated from Cunninghamella elegans (IFM 46109)	
Autores: 	Franco,Luciana de Oliveira; Maia,Rita de Cássia C.; Porto,Ana Lúcia F.; Messias,Arminda Sacconi; Fukushima,Kazutaka; Campos-Takaki,Galba Maria de.	
Data: 	2004-09-01	
Ano: 	2004	
Palavras-chave: 	Cunninghamella elegans; Chitin; Chitosan; Bioremediation; Biosorption.	
Resumo: 	Chitin and chitosan were extracted from mycelial biomass of Cunninghamella elegans and the performance for copper, lead and iron biosorption in aqueous solution was evaluated. The growth curve of C. elegans was accomplished by determination of biomass, pH, glucose and nitrogen consumption. Chitin and chitosan were extracted by alkali-acid treatment and the yields were 23.8 and 7.8%, respectively. For the adsorption analysis, the process of heavy uptake metal sorption was evaluated using polysaccharides solutions (1% w/v). The rate of metallic biosorption was dependent upon the concentration and pH of metal solutions, and the best results were observed with pH 4.0. Chitosan showed the highest affinity for copper and chitin for iron adsorption. The results suggest that C. elegans (IFM 46109) is an attractive source of production of chitin and chitosan, with a great potential of heavy metals bioremediation in polluted environments.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200013	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-83822004000200013	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.35 n.3 2004	
Fonte: 	info:eu-repo/semantics/openAccess