Sugarcane bagasse ozonolysis pretreatment: Effect on enzymatic digestibility and inhibitory compound formation

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dc.contributor.authorTravaini, Rodolfo
dc.contributor.authorOtero, Marian Derly Morales
dc.contributor.authorCoca, Mónica
dc.contributor.authorDa-Silva, Roberto [UNESP]
dc.contributor.authorBolado, Silvia
dc.contributor.institutionUniversity of Valladolid
dc.contributor.institutionUniversity of Valle
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:28:44Z
dc.date.available2014-05-27T11:28:44Z
dc.date.issued2013-04-01
dc.description.abstractSugarcane bagasse was pretreated with ozone to increase lignocellulosic material digestibility. Bagasse was ozonated in a fixed bed reactor at room temperature, and the effect of the two major parameters, ozone concentration and sample moisture, was studied. Acid insoluble and total lignin decreased whereas acid soluble lignin increased in all experiments. Pretreatment barely attacked carbohydrates, with cellulose and xylan recovery rates being >92%. Ozonolysis increased fermentable carbohydrate release considerably during enzymatic hydrolysis. Glucose and xylose yields increased from 6.64% and 2.05%, for raw bagasse, to 41.79% and 52.44% under the best experimental conditions. Only xylitol, lactic, formic and acetic acid degradation compounds were found, with neither furfural nor HMF (5-hydroxymethylfurfural) being detected. Washing detoxification provided inhibitor removal percentages above 85%, increasing glucose hydrolysis, but decreasing xylose yield by xylan solubilization. SEM analysis showed structural changes after ozonization and washing. © 2013 Elsevier Ltd.en
dc.description.affiliationDepartment of Chemical Engineering and Environmental Technology University of Valladolid, Doctor Mergelina s/n, 47011 Valladolid
dc.description.affiliationLaboratory of Environmental Microbiology and Biotechnology School of Environmental and Natural Resources Engineering University of Valle, Calle 13 No. 100-00, A.A. 25360 Santiago de Cali
dc.description.affiliationLaboratory of Biochemistry and Applied Microbiology Department of Chemistry and Environmental Sciences IBILCE, São Paulo State University, UNESP, Rua Cristóvão Colombo, 2265, Jd Nazareth, 15054-000 São José do Rio Preto, SP
dc.description.affiliationUnespLaboratory of Biochemistry and Applied Microbiology Department of Chemistry and Environmental Sciences IBILCE, São Paulo State University, UNESP, Rua Cristóvão Colombo, 2265, Jd Nazareth, 15054-000 São José do Rio Preto, SP
dc.format.extent332-339
dc.identifierhttp://dx.doi.org/10.1016/j.biortech.2013.01.133
dc.identifier.citationBioresource Technology, v. 133, p. 332-339.
dc.identifier.doi10.1016/j.biortech.2013.01.133
dc.identifier.issn0960-8524
dc.identifier.issn1873-2976
dc.identifier.lattes9424175688206545
dc.identifier.scopus2-s2.0-84874378881
dc.identifier.urihttp://hdl.handle.net/11449/74913
dc.identifier.wosWOS:000318261000044
dc.language.isoeng
dc.relation.ispartofBioresource Technology
dc.relation.ispartofjcr5.807
dc.relation.ispartofsjr2,029
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectEnzymatic hydrolysis
dc.subjectInhibitory compounds
dc.subjectOzonolysis
dc.subjectPretreatment
dc.subjectSugarcane bagasse
dc.subject5 hydroxymethyl furfurals
dc.subjectAcid degradation
dc.subjectAcid soluble lignin
dc.subjectEnzymatic digestibility
dc.subjectExperimental conditions
dc.subjectFermentable carbohydrate
dc.subjectFixed bed reactor
dc.subjectLignocellulosic material
dc.subjectOzone concentration
dc.subjectPre-Treatment
dc.subjectRaw bagasse
dc.subjectRecovery rate
dc.subjectRoom temperature
dc.subjectSEM analysis
dc.subjectStructural change
dc.subjectSugar-cane bagasse
dc.subjectXylose yields
dc.subjectAcetic acid
dc.subjectCarbohydrates
dc.subjectChemical reactors
dc.subjectDetoxification
dc.subjectGlucose
dc.subjectMolecular biology
dc.subjectOzone
dc.subjectOzonization
dc.subjectSugar substitutes
dc.subjectWashing
dc.subjectXylose
dc.subjectBagasse
dc.subject5 hydroxymethylfurfural
dc.subjectacetic acid
dc.subjectbagasse
dc.subjectcarbohydrate
dc.subjectcellulose
dc.subjectformic acid
dc.subjectfurfural
dc.subjectglucose
dc.subjectlactic acid
dc.subjectlignin
dc.subjectlignocellulose
dc.subjectxylan
dc.subjectxylitol
dc.subjectxylose
dc.subjectbiodegradation
dc.subjectbioreactor
dc.subjectdetoxification
dc.subjectenzyme activity
dc.subjectfermentation
dc.subjecthydrolysis
dc.subjectinhibitor
dc.subjectozone
dc.subjectpollutant removal
dc.subjectsolubilization
dc.subjectsugar cane
dc.subjecttemperature effect
dc.subjectbiomass
dc.subjectconcentration (parameters)
dc.subjectenzyme degradation
dc.subjectfixed bed reactor
dc.subjectmoisture
dc.subjectozonation
dc.subjectozonolysis
dc.subjectpriority journal
dc.subjectqualitative analysis
dc.subjectreaction time
dc.subjectroom temperature
dc.subjectscanning electron microscope
dc.subjectsugarcane
dc.subjectAcetic Acid
dc.subjectChemical Reactors
dc.subjectEnzymatic Activity
dc.subjectHydrolysis
dc.subjectSugar Cane
dc.titleSugarcane bagasse ozonolysis pretreatment: Effect on enzymatic digestibility and inhibitory compound formationen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes9424175688206545
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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