An integrated approach to obtain xylo-oligosaccharides from sugarcane straw: From lab to pilot scale

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dc.contributor.authorBrenelli, Lívia B.
dc.contributor.authorFigueiredo, Fernanda L.
dc.contributor.authorDamasio, André
dc.contributor.authorFranco, Telma T.
dc.contributor.authorRabelo, Sarita C. [UNESP]
dc.contributor.institutionBrazilian Center for Research in Energy and Materials (CNPEM)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:28:25Z
dc.date.available2020-12-12T01:28:25Z
dc.date.issued2020-10-01
dc.description.abstractSugarcane straw (SS) is a widely available agricultural processing feedstock with the potential to produce 2nd generation bioethanol and bioproducts, in addition to the more conventional use for heat and/or electrical power generation. In this study, we investigated the operational parameters to maximize the production of xylo-oligosaccharides (XOS) using mild deacetylation, followed by hydrothermal pretreatment. From the laboratory to the pilot-scale, the optimized two-stage pretreatment promoted 81.5% and 70.5% hemicellulose solubilization and led to XOS yields up to 9.8% and 9.1% (w/w of initial straw), respectively. Moreover, different fungal xylanases were also tested to hydrolyze XOS into xylobiose (X2) and xylotriose (X3). GH10 from Aspergillus nidulans performed better than GH11 xylanases and the ratio of the desired products (X2 + X3) increased to 72% due to minimal monomeric sugar formation. Furthermore, a cellulose-rich fraction was obtained, which can be used in other high value-added applications, such as for the production of cello-oligomers.en
dc.description.affiliationBrazilian Biorenewables National Laboratory (LNBR) Brazilian Center for Research in Energy and Materials (CNPEM), Giuseppe Máximo Scolfaro, 10.000
dc.description.affiliationInterdisciplinary Center of Energy Planning University of Campinas, Cora Coralina, 330
dc.description.affiliationDepartment of Biochemistry and Tissue Biology Institute of Biology University of Campinas (UNICAMP)
dc.description.affiliationDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Avenida Universitária
dc.description.affiliationUnespDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Avenida Universitária
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipBiotechnology and Biological Sciences Research Council
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2015/50612-8
dc.description.sponsorshipIdBiotechnology and Biological Sciences Research Council: 2017/15477-8
dc.description.sponsorshipIdBiotechnology and Biological Sciences Research Council: 2017/22669-0
dc.description.sponsorshipIdCNPq: 304816/2017-5
dc.description.sponsorshipIdCNPq: 304944/2018-1
dc.description.sponsorshipIdCNPq: 404654/2018-5
dc.identifierhttp://dx.doi.org/10.1016/j.biortech.2020.123637
dc.identifier.citationBioresource Technology, v. 313.
dc.identifier.doi10.1016/j.biortech.2020.123637
dc.identifier.issn1873-2976
dc.identifier.issn0960-8524
dc.identifier.scopus2-s2.0-85086761985
dc.identifier.urihttp://hdl.handle.net/11449/199018
dc.language.isoeng
dc.relation.ispartofBioresource Technology
dc.sourceScopus
dc.subjectDeacetylation
dc.subjectHydrothermal pretreatment
dc.subjectSugarcane straw
dc.subjectXylanases
dc.subjectXylo-oligosaccharides
dc.titleAn integrated approach to obtain xylo-oligosaccharides from sugarcane straw: From lab to pilot scaleen
dc.typeArtigo

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