Acid dye biodegradation using saccharomyces cerevisiae immobilized with polyethyleneimine-treated sugarcane bagasse

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMitter, E. K.
dc.creatorCorso, C. R.
dc.date2014-05-27T11:27:27Z
dc.date2016-10-25T18:40:50Z
dc.date2014-05-27T11:27:27Z
dc.date2016-10-25T18:40:50Z
dc.date2013-01-01
dc.date.accessioned2017-04-06T02:06:53Z
dc.date.available2017-04-06T02:06:53Z
dc.identifierWater, Air, and Soil Pollution, v. 224, n. 1, 2013.
dc.identifier0049-6979
dc.identifier1573-2932
dc.identifierhttp://hdl.handle.net/11449/74146
dc.identifierhttp://acervodigital.unesp.br/handle/11449/74146
dc.identifier10.1007/s11270-012-1391-2
dc.identifierWOS:000313012500030
dc.identifier2-s2.0-84870059604
dc.identifierhttp://dx.doi.org/10.1007/s11270-012-1391-2
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/894919
dc.descriptionChemical reagents used by the textile industry are very diverse in their composition, ranging from inorganic compounds to polymeric compounds. Strong color is the most notable characteristic of textile effluents, and a large number of processes have been employed for color removal. In recent years, attention has been directed toward various natural solid materials that are able to remove pollutants from contaminated water at low cost, such as sugarcane bagasse. Cell immobilization has emerged as an alternative that offers many advantages in the biodegradation process, including the reuse of immobilized cells and high mechanical strength, which enables metabolic processes to occur under adverse conditions of pH, sterility, and agitation. Support treatment also increases the number of charges on the surface, thereby facilitating cell immobilization processes through adsorption and ionic bonds. Polyethyleneimine (PEI) is a polycationic compound known to have a positive effect on enzyme activity and stability. The aim of the present study was to investigate a low-cost alternative for the biodegradation and bioremediation of textile dyes, analyzing Saccharomyces cerevisiae immobilization in activated bagasse for the promotion of Acid Black 48 dye biodegradation in an aqueous solution. A 1 % concentration of a S. cerevisiae suspension was evaluated to determine cell immobilization rates. Once immobilization was established, biodegradation assays with free and immobilized yeast in PEI-treated sugarcane bagasse were evaluated for 240 h using UV-vis spectrophotometry. The analysis revealed significant relative absorbance values, indicating the occurrence of biodegradation in both treatments. Therefore, S. cerevisiae immobilized in sugarcane bagasse is very attractive for use in biodegradation processes for the treatment of textile effluents. © 2012 Springer Science+Business Media Dordrecht.
dc.languageeng
dc.relationWater, Air, and Soil Pollution
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAcid Black 48
dc.subjectBiodegradation
dc.subjectImmobilization
dc.subjectSaccharomyces cerevisiae
dc.subjectSugarcane bagasse
dc.subjectTextile dyes
dc.subjectAcid dye
dc.subjectBiodegradation process
dc.subjectChemical reagents
dc.subjectContaminated water
dc.subjectHigh mechanical strength
dc.subjectImmobilization process
dc.subjectImmobilization rates
dc.subjectImmobilized cells
dc.subjectImmobilized yeasts
dc.subjectIonic bonds
dc.subjectLow costs
dc.subjectMetabolic process
dc.subjectPolyethyleneimine
dc.subjectPolymeric compounds
dc.subjectRelative absorbance
dc.subjectS.cerevisiae
dc.subjectSolid material
dc.subjectSugar-cane bagasse
dc.subjectTextile effluent
dc.subjectUV-vis spectrophotometry
dc.subjectAdsorption
dc.subjectBagasse
dc.subjectBioremediation
dc.subjectCell immobilization
dc.subjectInorganic compounds
dc.subjectMicrobiology
dc.subjectRadioactive waste vitrification
dc.subjectSuspensions (fluids)
dc.subjectTextile industry
dc.subjectTextiles
dc.subjectWater pollution
dc.subjectYeast
dc.subjectbagasse
dc.subjectdye
dc.subjectpolyethyleneimine
dc.subjectbiodegradation
dc.subjectcolor
dc.subjecteffluent
dc.subjectimmobilization
dc.subjectaqueous solution
dc.subjectbioremediation
dc.subjectbiosorption
dc.subjectcontrolled study
dc.subjectimmobilized cell
dc.subjectnonhuman
dc.subjectsugarcane
dc.titleAcid dye biodegradation using saccharomyces cerevisiae immobilized with polyethyleneimine-treated sugarcane bagasse
dc.typeOtro


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