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Ethanol Production from Sugarcane Bagasse Pretreated by Steam Explosion

dc.contributor.authorAmores, Isis
dc.contributor.authorBallesteros, Ignacio
dc.contributor.authorManzanares, Paloma
dc.contributor.authorSáez, Felicia
dc.contributor.authorMichelena, Georgina
dc.contributor.authorBallesteros, Mercedes
dc.identifier.citationElectronic Journal of Energy & Environment: Vol. 1 Nº 1, 25-36, 2013
dc.description.abstractBioethanol is an alternative renewable fuel that can be produced from cellulosic biomass through hydrolysis and fermentation based processes. Sugarcane bagasse constitutes a potential lignocellulosic substrate for bioethanol production, since it has high sugar content and is a renewable, cheap and readily available feedstock. In this work, steam explosion pretreatment at different temperatures (200°C, 215°C and 230°C) for 5 min was evaluated on sugarcane bagasse for ethanol production by simultaneous saccharification and fermentation (SSF). Sugar recovery in the solid and liquid fraction obtained after pretreatment and the enzymatic digestibility of the pretreated material were used to determine the optimum temperature, 215°C for 5 min, which resulted in an overall glucose yield of 86.8% of the content in raw material. The solid fraction of sugarcane bagasse pretreated at 215°C was submitted to SSF at increasing solid loading and the effect of xylanase supplementation and a presaccharification step was assessed. The highest final ethanol concentration (56.3 g L-1) was achieved with SSF supplemented with xylanase enzyme at 20% of solid concentration. Ethanol yields exceeded 0.30 g per gram of glucose in all the conconditions tested. The results obtained demonstrate the effectiveness of steam explosion in the treatment of sugarcane bagasse
dc.publisherEdiciones Universidad Católica de Temucoes
dc.rightsObra bajo licencia Creative Commons 3.0es
dc.sourceElectronic Journal of Energy & Environmentes
dc.subjectHidrólisis enzimáticaes
dc.titleEthanol Production from Sugarcane Bagasse Pretreated by Steam Explosiones
dc.typeArtículo de Revistaes
uct.nucleosNúcleo en Energías Renovableses
uct.disciplinaEnergías Renovables y Medioambientees
uct.facultadFacultad de Ingenieríaes
uct.unidadacademicaDirección General de Investigación y Postgradoes
uct.indizacionRevista UCTes

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