Lime Pretreatment and Fermentation of Enzymatically Hydrolyzed Sugarcane Bagasse

dc.creatorRabelo, SC
dc.creatorMaciel, R
dc.creatorCosta, AC
dc.date2013
dc.dateMAR
dc.date2014-08-01T18:34:45Z
dc.date2015-11-26T17:07:01Z
dc.date2014-08-01T18:34:45Z
dc.date2015-11-26T17:07:01Z
dc.date.accessioned2018-03-28T23:55:28Z
dc.date.available2018-03-28T23:55:28Z
dc.identifierApplied Biochemistry And Biotechnology. Humana Press Inc, v. 169, n. 5, n. 1696, n. 1712, 2013.
dc.identifier0273-2289
dc.identifierWOS:000316116500018
dc.identifier10.1007/s12010-013-0097-2
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/81050
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/81050
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1280007
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionSugarcane bagasse was subjected to lime (calcium hydroxide) pretreatment and enzymatic hydrolysis for second-generation ethanol production. A central composite factorial design was performed to determine the best combination of pretreatment time, temperature, and lime loading, as well as to evaluate the influence of enzymatic loadings on hydrolysis conversion. The influence of increasing solids loading in the pretreatment and enzymatic hydrolysis stages was also determined. The hydrolysate was fermented using Saccharomyces cerevisiae in batch and continuous mode. In the continuous fermentation, the hydrolysates were concentrated with molasses. Lime pretreatment significantly increased the enzymatic digestibility of sugarcane bagasse without the need for prior particle size reduction. In the optimal pretreatment conditions (90 h, 90 A degrees C, 0.47 g lime/g bagasse) and industrially realistic conditions of hydrolysis (12.7 FPU/g of cellulase and 7.3 CBU/g of beta-glucosidase), 139.6 kg lignin/ton raw bagasse and 126.0 kg hemicellulose in the pretreatment liquor per ton raw bagasse were obtained. The hydrolysate from lime pretreated sugarcane bagasse presented low amounts of inhibitors, leading to ethanol yield of 164.1 kg ethanol/ton raw bagasse.
dc.description169
dc.description5
dc.description1696
dc.description1712
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [07/01525-9]
dc.languageen
dc.publisherHumana Press Inc
dc.publisherTotowa
dc.publisherEUA
dc.relationApplied Biochemistry And Biotechnology
dc.relationAppl. Biochem. Biotechnol.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectLignocellulosic
dc.subjectPretreatment
dc.subjectLime
dc.subjectEnzymatic hydrolysis
dc.subjectEthanol
dc.subjectBioethanol Production
dc.subjectSolids Concentration
dc.subjectEthanol-production
dc.subjectCellulase
dc.subjectLignocellulose
dc.subjectKinetics
dc.subjectBiomass
dc.titleLime Pretreatment and Fermentation of Enzymatically Hydrolyzed Sugarcane Bagasse
dc.typeArtículos de revistas


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