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Prado Acosta, M.; Valdman, E.; Leite, S.G.F.; Battaglini, F.; Ruzal, S.M. "Biosorption of copper by Paenibacillus polymyxa cells and their exopolysaccharide" (2005) World Journal of Microbiology and Biotechnology. 21(6-7):1157-1163
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Abstract:

Biosorption of heavy metals by gram-positive, non-pathogenic and non-toxicogenic Paenibacillus polymyxa P13 was evaluated. Copper was chosen as a model element because it is a pollutant originated from several industries. An EPS (exopolysaccharide)-producing phenotype exhibited significant Cu(II) biosorption capacity. Under optimal assay conditions (pH 6 and 25°C), the adsorption isotherm for Cu(II) in aqueous solutions obeyed the Langmuir model. A high q value (biosorption capacity) was observed with whole cells (q max=112 mgCu g-1). EPS production was associated with hyperosmotic stress by high salt (1 M NaCl), which led to a significant increase in the biosorption capacity of whole cells (q max=150 mgCu g -1). Biosorption capacity for Cu(II) of the purified EPS was investigated. The maximum biosorption value (q) of 1602 mg g-1 observed with purified EPS at 0.1 mg ml-1 was particularly promising for use in field applications. © Springer 2005.

Registro:

Documento: Artículo
Título:Biosorption of copper by Paenibacillus polymyxa cells and their exopolysaccharide
Autor:Prado Acosta, M.; Valdman, E.; Leite, S.G.F.; Battaglini, F.; Ruzal, S.M.
Filiación:Dto. Química Biológica, FCEN-Universidad de Buenos Aires, Argentina
Escola de Química, Universidade Federal Do Rio de Janeiro, Brazil
DQIAyQF, FCEN - Universidad de Buenos Aires, Argentina
Palabras clave:Biosorption; Exopolysaccharide; Heavy metal; Paenibacillus polymyxa; Cells; Heavy metals; Microbiology; Pollution; Sorption; Biosorption; Langmuir models; Biotechnology; Paenibacillus polymyxa; Posibacteria
Año:2005
Volumen:21
Número:6-7
Página de inicio:1157
Página de fin:1163
DOI: http://dx.doi.org/10.1007/s11274-005-0381-6
Título revista:World Journal of Microbiology and Biotechnology
Título revista abreviado:World J. Microbiol. Biotechnol.
ISSN:09593993
CODEN:WJMBE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09593993_v21_n6-7_p1157_PradoAcosta

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Citas:

---------- APA ----------
Prado Acosta, M., Valdman, E., Leite, S.G.F., Battaglini, F. & Ruzal, S.M. (2005) . Biosorption of copper by Paenibacillus polymyxa cells and their exopolysaccharide. World Journal of Microbiology and Biotechnology, 21(6-7), 1157-1163.
http://dx.doi.org/10.1007/s11274-005-0381-6
---------- CHICAGO ----------
Prado Acosta, M., Valdman, E., Leite, S.G.F., Battaglini, F., Ruzal, S.M. "Biosorption of copper by Paenibacillus polymyxa cells and their exopolysaccharide" . World Journal of Microbiology and Biotechnology 21, no. 6-7 (2005) : 1157-1163.
http://dx.doi.org/10.1007/s11274-005-0381-6
---------- MLA ----------
Prado Acosta, M., Valdman, E., Leite, S.G.F., Battaglini, F., Ruzal, S.M. "Biosorption of copper by Paenibacillus polymyxa cells and their exopolysaccharide" . World Journal of Microbiology and Biotechnology, vol. 21, no. 6-7, 2005, pp. 1157-1163.
http://dx.doi.org/10.1007/s11274-005-0381-6
---------- VANCOUVER ----------
Prado Acosta, M., Valdman, E., Leite, S.G.F., Battaglini, F., Ruzal, S.M. Biosorption of copper by Paenibacillus polymyxa cells and their exopolysaccharide. World J. Microbiol. Biotechnol. 2005;21(6-7):1157-1163.
http://dx.doi.org/10.1007/s11274-005-0381-6