naa a22 4500 510749895 CHVBK 20180411083100.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11270-013-1607-0 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1607-0 FT-IR Analysis of Acid Black Dye Biodegradation Using Saccharomyces cerevisiae Immobilized with Treated Sugarcane Bagasse [Elektronische Daten] [E. Mitter, C. Corso] Textile industries use large amounts of water in dyeing processes and a wide variety of synthetic dyes. A small concentration of these dyes in the environment can generate highly visible pollution and changes in aquatic ecosystems. Adsorption, biosorption, and biodegradation are the most advantageous dye removal processes. Biodegradation occurs when enzymes produced by certain microorganisms are capable of breaking down the dye molecule. To increase the efficiency of these processes, cell immobilization enables the reuse of the immobilized cells and offers a high degree of mechanical strength, allowing metabolic processes to take place under adverse conditions. The aim of the present study was to investigate the use of Saccharomyces cerevisiae immobilized in activated sugarcane bagasse for the degradation of Acid Black 48 dye in aqueous solutions. For such, sugarcane bagasse was treated with polyethyleneimine (PEI). Concentrations of a 1% S. cerevisiae suspension were evaluated to determine cell immobilization rates. Once immobilization was established, biodegradation assays for 240h with free and immobilized yeast in PEI-treated sugarcane bagasse were evaluated by Fourier transform infrared spectrophotometry. The results indicated a probable change in the dye molecule and the possible formation of new metabolites. Thus, S. cerevisiae immobilized in sugarcane bagasse is very attractive for biodegradation processes in the treatment of textile effluents. Springer Science+Business Media Dordrecht, 2013 Sugarcane bagasse nationallicence Textile dyes nationallicence Biodegradation nationallicence FT-IR nationallicence Immobilization nationallicence Saccharomyces cerevisiae nationallicence Acid Black 48 nationallicence Mitter E. Departamento de Bioquimica e Microbiologia, Instituto de Biociências (IB), Universidade Estadual Paulista (UNESP), Campus de Rio Claro, Av. 24 A 1515, Bela Vista, CEP 13506900, Rio Claro, São Paulo, Brazil aut Corso C. Departamento de Bioquimica e Microbiologia, Instituto de Biociências (IB), Universidade Estadual Paulista (UNESP), Campus de Rio Claro, Av. 24 A 1515, Bela Vista, CEP 13506900, Rio Claro, São Paulo, Brazil aut Water, Air, & Soil Pollution Springer Netherlands 224/7(2013-07-01), 1-9 0049-6979 224:7<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1607-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1607-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mitter E. Departamento de Bioquimica e Microbiologia, Instituto de Biociências (IB), Universidade Estadual Paulista (UNESP), Campus de Rio Claro, Av. 24 A 1515, Bela Vista, CEP 13506900, Rio Claro, São Paulo, Brazil aut NATIONALLICENCE 700 1- Corso C. Departamento de Bioquimica e Microbiologia, Instituto de Biociências (IB), Universidade Estadual Paulista (UNESP), Campus de Rio Claro, Av. 24 A 1515, Bela Vista, CEP 13506900, Rio Claro, São Paulo, Brazil aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/7(2013-07-01), 1-9 0049-6979 224:7<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer