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Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars

dc.contributor.authorFockink, Douglas, H.
dc.contributor.authorMorais, Ana Rita C.
dc.contributor.authorRamos, Luiz Pereira
dc.contributor.authorLukasik, Rafal M.
dc.date.accessioned2018-09-18T10:36:41Z
dc.date.available2018-09-18T10:36:41Z
dc.date.issued2018
dc.description.abstractABSTRACT: This work provides an insight into sugarcane bagasse pre-treatment carried out with greener and more sustainable CO2/H2O system. Temperatures and residence times at a fixed initial CO2 pressure were studied to verify their effects on pre-treatment efficiency with regard to the chemical composition of both water-soluble and water-insoluble fractions as well as to the susceptibility of the latter to enzymatic hydrolysis at high total solids. Also, trends in enzymatic hydrolysis were analysed in function of biomass crystallinity. This work provides an integrated approach in the analysis of upgradable sugars that are released as a result of pre-treatment and enzymatic hydrolysis. At optimal pre-treatment conditions, 17.2 g.L-1 sugars were released in the water-soluble fraction mainly as pentoses in monomeric and oligomeric forms. The enzymatic hydrolysis of solids produced at these pre-treatment conditions gave 76.8 g.L-1 glucose in the substrate hydrolysate. The overall sugar yield delivered in both pre-treatment and enzymatic hydrolysis was 73,9 mol%. These results were compared to the chemical effect of hydrothermal and/or physico-chemical effects of N-2-aided hydrothermal processes and showed that the greener processing of biomass pre-treatment with CO2 is advantageous for the integrated valorisation of industrial residues and delivery of upgradable sugars within the biorefinery concept.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFockink, Douglas H.; Morais, Ana R.C.; Ramos, Luiz P.; Lukasik, Rafal M. - Insight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugars. In: Energy, 2018, Vol. 151, p. 536-544pt_PT
dc.identifier.issn0360-5442
dc.identifier.urihttp://hdl.handle.net/10400.9/3053
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationIF/00471/2015pt_PT
dc.relationGREEN VALUE GREEN SOLVENTS IN THE BIOREFINERY - A TOOL TO PRODUCE HIGH VALUE-ADDED PRODUCTS
dc.relationPOCI-01-0145-FEDER - 007265pt_PT
dc.relationFCT/1909/27/2/2014/Spt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.energy.2018.03.085pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiomasspt_PT
dc.subjectBioenergypt_PT
dc.subjectCarbon dioxidept_PT
dc.subjectPre-treatmentpt_PT
dc.subjectEnzymatic hydrolysispt_PT
dc.titleInsight into the high-pressure CO2 pre-treatment of sugarcane bagasse for a delivery of upgradable sugarspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleGREEN VALUE GREEN SOLVENTS IN THE BIOREFINERY - A TOOL TO PRODUCE HIGH VALUE-ADDED PRODUCTS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F94297%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.citation.endPage544pt_PT
oaire.citation.startPage536pt_PT
oaire.citation.titleEnergypt_PT
oaire.citation.volume151pt_PT
oaire.fundingStreamOE
oaire.fundingStream5876
person.familyNameMorais
person.familyNameLukasik
person.givenNameAna
person.givenNameRafal
person.identifier.orcid0000-0002-3216-1533
person.identifier.orcid0000-0002-7805-5744
person.identifier.ridJ-9490-2013
person.identifier.ridA-6315-2011
person.identifier.scopus-author-id6506737268
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication205ab6f0-709e-43f1-aa97-b01ebb62ac4e
relation.isAuthorOfPublication6a7fdbd9-7961-407e-88d0-15d175ea711d
relation.isAuthorOfPublication.latestForDiscovery205ab6f0-709e-43f1-aa97-b01ebb62ac4e
relation.isProjectOfPublication2c571e4b-c349-463f-a8e0-cf3ec923650e
relation.isProjectOfPublication0f0f9d99-6c4b-4b87-bf74-e596350fe5d4
relation.isProjectOfPublication.latestForDiscovery0f0f9d99-6c4b-4b87-bf74-e596350fe5d4

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