Artículo
Biochemical characterization of Macrocystis pyrifera and Undaria pinnatifida (Phaeophyceae) in relation to their potentiality as biosorbents
Fecha de publicación:
01/2014
Editorial:
Int Phycological Soc
Revista:
Phycologia
ISSN:
0031-8884
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Undaria pinnatifida and Macrocystis pyrifera from Patagonia were characterized in terms of the alginate, protein, total carbohydrate and organic matter content, cation exchange capacity and acid-base properties to assess the suitability of both species as potential biosorbents of metals. Environmental scanning electron microscopy equipped with an energy dispersive X-ray microanalysis system, Fourier transform infrared spectroscopy (FT-IR) and Brunauer, Emmett and Teller surface area analysis were also applied for characterization. The results showed that U. pinnatifida had a higher percentage of organic matter, alginate and protein and a larger specific surface area than M. pyrifera, although the latter exhibited a higher ionic exchange capacity. The groups with a weak acid behaviour represented 84% and 97% of the total acid groups in M. pyrifera and U. pinnatifida, respectively. FT-IR analysis confirmed the presence of different chemical groups such as sulphonate in both biomaterial M. pyrifera and U. pinnatifida. Besides, Zn(II) adsorption capacity was different among different parts of the thallus of each species. The difference founded in the physicochemical properties of both algae could affect their biosorption capacities.
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Identificadores
Colecciones
Articulos(CIDEPINT)
Articulos de CENTRO DE INV EN TECNOLOGIA DE PINTURAS (I)
Articulos de CENTRO DE INV EN TECNOLOGIA DE PINTURAS (I)
Citación
Plaza Cazón, Josefina del Carmen; Viera, Marisa Rosana; Sala, Silvia; Donati, Edgardo Ruben; Biochemical characterization of Macrocystis pyrifera and Undaria pinnatifida (Phaeophyceae) in relation to their potentiality as biosorbents; Int Phycological Soc; Phycologia; 53; 1; 1-2014; 100-108
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