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Cadmium Biosoption by Immobilized Dead yeast cells From Bioethanol Industries | ||
| International Journal of Environmental Research | ||
| مقاله 3، دوره 5، شماره 4، آذر 2011، صفحه 833-836 اصل مقاله (342.08 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijer.2011.440 | ||
| نویسندگان | ||
| L.H. Gomes* 1؛ N. Alexandrino1؛ K.M. Roncato Duarte2؛ F.G. Andrino1 | ||
| 1USP/ESALQ – Department of Genetics – Yeast Laboratory, Av. Pádua Dias, 11, Piracicaba, SP 13418-900 Brazil | ||
| 2SAA/APTA – Institute of Animal Science and Pastures, Rua Heitor Penteado, 56. Nova Odessa, SP 13460-000. Brazil | ||
| چکیده | ||
| Dead yeast cells are an abundant residue of the Brazilian ethanol industry and the industries still don’t have a proper or desirable destiny for all these cells, which means tons of vitamins and proteins that have not a major end. In the other hand, heavy metal residues are a problem, especially for leather industry, where Brazil is also a great producer. In this work, dead yeast cells were used to evaluate cadmium biosorption samples. Results have shown that dried dead yeast cells at 20 % (W/V) immobilized in Na-alginate beads 0.5 % can be an efficient alternative for the capture of cadmium. The average biosorption rate was 122.10 mg Cd/ g of dry biomass in comparison to the control using only the Na-alginate beads 0.5 % where the biosorption rate achieved 57.29 mg Cd/g of dry biomass. This research opens wide opportunities to allies two major residues created in Brazilian industries with a noble end for the industries it selves as for the environment. | ||
| کلیدواژهها | ||
| Cadmium؛ yeast؛ Biosorption؛ Dead cells؛ Residue | ||
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