Evaluation of a simple alkaline pretreatment for screening of sugarcane hybrids according to their in vitro digestibility

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dc.contributor.authorMasarin, Fernando [UNESP]
dc.contributor.authorNeves, Aline S.
dc.contributor.authorMilagres, Adriane M. F.
dc.contributor.authorFerraz, Andre
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:08:55Z
dc.date.available2014-12-03T13:08:55Z
dc.date.issued2013-11-01
dc.description.abstractLignin depletion in new cultivars or transgenic plants has been identified as a way to diminish the recalcitrance of lignocellulosic materials. Direct enzymatic digestion of these materials provides some discrimination concerning their digestibility, but the cellulose conversion to glucose is usually lower than 30% in the case of sugarcane bagasse. This study evaluates the alkaline pretreatment of eleven sugarcane hybrids and one reference sample as a method for enhancing sample digestibility with the aim of better discrimination among cultivars. The treatment of the bagasse samples with 0.1% NaOH solutions resulted in an average of 10% of dry mass solubilization, with significant variation among the samples. The mass balances for these treatments showed that the cellulose fraction remained almost unchanged, whereas the hemicellulose decreased in most of the samples. The lignin fraction decreased only in the plants that contained the highest initial lignin contents. Alkali-treated samples provided enhanced cellulose conversion levels, varying from 23% to 48% after 72 h of enzymatic digestion. After pretreatment, the samples were better distinguished according to their digestibility by enzymes. In general, the experimental hybrids with originally low lignin contents presented the highest digestibility. (C) 2013 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Sao Paulo, Escola Engn Lorena, Dept Biotechnol, BR-12602810 Lorena, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias Farmaceut, BR-14801902 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias Farmaceut, BR-14801902 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 08/56256-5
dc.description.sponsorshipIdFAPESP: 11/08826-0
dc.format.extent390-395
dc.identifierhttp://dx.doi.org/10.1016/j.indcrop.2013.09.033
dc.identifier.citationIndustrial Crops And Products. Amsterdam: Elsevier Science Bv, v. 51, p. 390-395, 2013.
dc.identifier.doi10.1016/j.indcrop.2013.09.033
dc.identifier.issn0926-6690
dc.identifier.urihttp://hdl.handle.net/11449/111717
dc.identifier.wosWOS:000330820800054
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofIndustrial Crops and Products
dc.relation.ispartofjcr3.849
dc.relation.ispartofsjr1,091
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSugarcaneen
dc.subjectLignin-depleted plantsen
dc.subjectRecalcitranceen
dc.subjectCellulasesen
dc.subjectAlkali pretreatmenten
dc.subjectDigestibilityen
dc.titleEvaluation of a simple alkaline pretreatment for screening of sugarcane hybrids according to their in vitro digestibilityen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0003-1133-1254[3]
unesp.author.orcid0000-0001-9948-3273[1]
unesp.author.orcid0000-0002-9968-7054[4]

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