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Microwave-assisted hydrothermal processing of pine nut shells for oligosaccharide production

2024-09Artigo científico Acesso aberto
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dc.contributor.authorTorrado, Ivone
dc.contributor.authorNeves, Beatriz Guapo
dc.contributor.authorFernandes, Maria da Conceição
dc.contributor.authorCarvalheiro, Florbela
dc.contributor.authorPereira, Helena
dc.contributor.authorDuarte, Luís C.
dc.date.accessioned2024-12-16T11:17:09Z
dc.date.available2024-12-16T11:17:09Z
dc.date.issued2024-09
dc.description.abstractPine nut shells, a biomass residue from the Mediterranean Pinus pinea pine nut industrial processing, were treated by microwave- assisted autohydrolysis to produce xylo-oligosaccharides. Microwave-assisted processes provide alternative heating that may reduce energy input and increase overall process efficiency. The autohydrolysis treatments were performed under isothermal and non-isothermal operations within a wide range of operational conditions (temperature/reaction times) covering several severity regimes (as measured by the log R0 severity factor). The composition of the autohydrolysis liquors was determined in terms of oligo- and monosaccharides, aliphatic acids and degradation compounds. The process was highly selective towards hemicelluloses hydrolysis and liquid streams containing a mixture of oligomeric compounds (mainly xylooligosaccharides) could be obtained under relatively mild operation conditions (190 °C, 30 min) with a maximal oligosaccharides’ concentration of 18.48 g/L. The average polymerization degree of the obtained oligosaccharides was characterised by HPLC, showing that for the optimal conditions a mixture of oligomers with DPs from 2 to 6.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationTorrado, Ivone, et al. “Microwave-Assisted Hydrothermal Processing of Pine Nut Shells for Oligosaccharide Production.” Biomass Conversion and Biorefinery, vol. 14, no. 17, Sept. 2024, pp. 20751–60pt_PT
dc.identifier.doi10.1007/s13399-023-05244-zpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/96357
dc.language.isoengpt_PT
dc.publisherSpringerpt_PT
dc.relationALT20-03-0145-FEDER-000034pt_PT
dc.relationUID/AGR/00239/2020pt_PT
dc.relationUIDB/05183/2020pt_PT
dc.relationLA/P/0121/2020pt_PT
dc.relationPD/BD/114175/2016pt_PT
dc.relationALT20- 05-3559-ESF-000076pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectbiorefineriespt_PT
dc.subjectfractionationpt_PT
dc.subjecthemicellulosespt_PT
dc.subjectmicrowave heatingpt_PT
dc.subjectPinus pinaept_PT
dc.subjectseverity factorpt_PT
dc.titleMicrowave-assisted hydrothermal processing of pine nut shells for oligosaccharide productionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage20760pt_PT
oaire.citation.issue17pt_PT
oaire.citation.startPage20751pt_PT
oaire.citation.titleBiomass Conversion and Biorefinerypt_PT
oaire.citation.volume14pt_PT
person.familyNameTorrado
person.familyNameMargarida Nunes Pereira
person.givenNameIvone
person.givenNameHelena
person.identifier.ciencia-idA219-EFE5-D4BB
person.identifier.ciencia-id4317-A0D2-2E2A
person.identifier.orcid0000-0002-9106-6923
person.identifier.orcid0000-0002-5393-4443
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication40c02c68-dd3e-40b8-ac7b-a69d22aa5a12
relation.isAuthorOfPublicationc99830c9-db3e-48da-ab3e-9449493f2c43
relation.isAuthorOfPublication.latestForDiscovery40c02c68-dd3e-40b8-ac7b-a69d22aa5a12

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