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Distillery residues from Cistus ladanifer (Rockrose) as feedstock for the production of added-value phenolic compounds and hemicellulosic oligosaccharides

2019Journal article Open access
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dc.contributor.authorAlves Ferreira Caturra, Júnia Aparecida
dc.contributor.authorDuarte, Luís C.
dc.contributor.authorLourenço, Ana
dc.contributor.authorRoseiro, Luisa B.
dc.contributor.authorC. Fernandes, M.
dc.contributor.authorPereira, Helena
dc.contributor.authorCarvalheiro, Florbela
dc.date.accessioned2020-05-22T15:09:08Z
dc.date.available2020-05-22T15:09:08Z
dc.date.issued2019
dc.description.abstractABSTRACT: Cistus ladanifer residues obtained after essential oil distillation were extracted with ethanol and water (CLRext) and subsequently hydrothermally treated (autohydrolysis) in order to selectively hydrolyze hemicelluloses. The extraction removed a significant amount of potentially valuable compounds (40% w/w, dry basis), foremost, phenolic compounds (0.363 and 0.250 g gallic acid equivalent/g extract, respectively, for water and ethanol). Autohydrolysis was studied under diverse severity factors (log R-o), in the temperature range of 150 to 230 degrees C. The hydrolyzates mainly contain oligosaccharides, reaching the highest concentration (23.5g/L) for log R-o of 3.07 (190 degrees C), corresponding to a yield of 15g oligosaccharides/100g dry feedstock. The processed solids are enriched in glucan and lignin. The maximum glucan content (35%) was attained at log R-o of 3.51 (205 degrees C). Py-GC/MS confirmed the reduction of pentose-derived carbohydrates in the solid after hydrothermal treatment and an increase of syringil units in the lignin compared to the untreated biomass. These results show the potential use of this C. ladanifer residue for the production of phenolic extracts, and hemicellulosic oligosaccharides, together with the production of a cellulose- and lignin-rich solid stream.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlves-Ferreira, Júnia... [et.al.] - Distillery residues from Cistus ladanifer (Rockrose) as feedstock for the production of added-value phenolic compounds and hemicellulosic oligosaccharides. In: BioEnergy Research, 2019, Vol. 12(2), p. 347-358pt_PT
dc.identifier.doi10.1007/s12155-019-09975-8pt_PT
dc.identifier.issn1939-1234
dc.identifier.urihttp://hdl.handle.net/10400.9/3275
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationFCT - UID/AGR/00239/ 2019pt_PT
dc.relationFCT - UID/AGR/00115/2019pt_PT
dc.relation.publisherversionhttps://doi.org/10.1007/s12155-019-09975-8pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBioethanolpt_PT
dc.subjectExtractionpt_PT
dc.subjectFractionationpt_PT
dc.subjectHemicellulosept_PT
dc.subjectHydrothermal treatmentpt_PT
dc.subjectPhenolic compoundspt_PT
dc.subjectPre-treatmentpt_PT
dc.titleDistillery residues from Cistus ladanifer (Rockrose) as feedstock for the production of added-value phenolic compounds and hemicellulosic oligosaccharidespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F95385%2F2013/PT
oaire.citation.endPage358pt_PT
oaire.citation.startPage347pt_PT
oaire.citation.titleBioEnergy Researchpt_PT
oaire.citation.volume12pt_PT
oaire.fundingStreamSFRH
person.familyNameAlves Ferreira Caturra
person.familyNameDuarte
person.familyNameLourenco
person.familyNamede Bivar Weinholtz Roseiro
person.familyNameFernandes
person.familyNamePereira
person.familyNameCarvalheiro
person.givenNameJúnia Aparecida
person.givenNameLuís
person.givenNameAna
person.givenNameMaria Luisa
person.givenNameMaria da Conceição
person.givenNameHelena
person.givenNameFlorbela
person.identifier59799
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person.identifier.orcid0000-0002-0270-4832
person.identifier.ridC-1430-2008
person.identifier.ridA-5901-2011
person.identifier.ridL-1101-2014
person.identifier.ridL-1860-2014
person.identifier.scopus-author-id56649966600
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person.identifier.scopus-author-id6602749883
person.identifier.scopus-author-id8045276200
person.identifier.scopus-author-id7103251554
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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