Effect of volumetric oxygen transfer coefficient (kLa) on ethanol production performance by Scheffersomyces stipitis on hemicellulosic sugarcane bagasse hydrolysate

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dc.contributor.authorSilva, Débora Danielle Virgínio
dc.contributor.authorDussán, Kelly Johana [UNESP]
dc.contributor.authorHernández, Valentina
dc.contributor.authorSilva, Silvio Silvério da
dc.contributor.authorCardona, Carlos Ariel
dc.contributor.authorFelipe, Maria das Graças de Almeida
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidad Nacional de Colombia sede Manizales
dc.date.accessioned2018-12-11T17:02:38Z
dc.date.available2018-12-11T17:02:38Z
dc.date.issued2016-08-15
dc.description.abstractExperimental evaluation of the effect of the agitation speed and aeration rate (measured by kLa) and energy required for ethanol production using sugarcane bagasse hemicellulosic hydrolysate (SBHH) by Scheffersomyces stipitis were studied. Fermentation and purification stages were simulated using the software Aspen Plus with experimental data to understand the overall energy performance of the process. In all experiments, fermentative parameters and the thermal energy required in the ethanol production process were strongly influenced by kLa values. The optimum initial kLa to achieve the maximal ethanol concentration (15.03 g L-1) and the minimal thermal energy required (1.85 × 105 KW per kg ethanol), were found at 8.0 h-1 (450 rpm and 0.6 vvm). Under this condition, the ethanol yield and productivity were 0.37 g g-1 and 0.30 g L-1 h-1, respectively. The current study highlights the ethanol production improvement from hemicellulose hydrolysate by S. stipitis and will contribute to developing a more efficient strategies for fermentation of both cellulose and hemicellulose hydrolysates.en
dc.description.affiliationDepartamento de Biotecnologia Escola de Engenharia de Lorena (EEL) Universidade de São Paulo (USP), Estrada Municipal do Campinho, s/n
dc.description.affiliationDepartamento de Bioquímica e Tecnologia Química Instituto de Química Universidade Estadual Paulista-UNESP, Campus de Araraquara, Rua Prof. Francisco Degni n 55
dc.description.affiliationInstituto de Biotecnología y Agroindustria Departamento de Ingeniería Química Universidad Nacional de Colombia sede Manizales, Kilometro 7 Via al Aeropuerto Bloque T Campus la Nubia
dc.description.affiliationUnespDepartamento de Bioquímica e Tecnologia Química Instituto de Química Universidade Estadual Paulista-UNESP, Campus de Araraquara, Rua Prof. Francisco Degni n 55
dc.format.extent249-257
dc.identifierhttp://dx.doi.org/10.1016/j.bej.2016.04.012
dc.identifier.citationBiochemical Engineering Journal, v. 112, p. 249-257.
dc.identifier.doi10.1016/j.bej.2016.04.012
dc.identifier.issn1873-295X
dc.identifier.issn1369-703X
dc.identifier.scopus2-s2.0-84964798340
dc.identifier.urihttp://hdl.handle.net/11449/172899
dc.language.isoeng
dc.relation.ispartofBiochemical Engineering Journal
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectDissolved oxygen
dc.subjectEthanol
dc.subjectFermentation
dc.subjectHemicellulosic hydrolysate
dc.subjectSugarcane bagasse
dc.subjectYeast Scheffersomyces stipitis
dc.titleEffect of volumetric oxygen transfer coefficient (kLa) on ethanol production performance by Scheffersomyces stipitis on hemicellulosic sugarcane bagasse hydrolysateen
dc.typeArtigo

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