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Effective fractionation of microalgae biomass as an initial step for its utilization as a bioenergy feedstock

dc.contributor.authorMartins, Pedro L.
dc.contributor.authorReis, Alberto
dc.contributor.authorDuarte, Luís C.
dc.contributor.authorCarvalheiro, Florbela
dc.date.accessioned2022-12-14T16:12:47Z
dc.date.available2022-12-14T16:12:47Z
dc.date.issued2022-12
dc.description.abstractABSTRACT: Scenedesmus obliquus, a biotechnologically relevant microalgae, was grown in 70 L vertical photobioreactors using non-supplemented secondary brewery wastewater as a culture medium. Upon collection, by mechanical means, the cells were subjected to hydrothermal (autohydrolysis) and dilute acid hydrolysis (0.5 % sulfuric acid) pre-treatments carried out using pressure micro-reactors under isothermal conditions up to 300 min. Both processes enabled a high recovery of soluble sugars (similar to 50 %) that were, in a great majority, present in the added-value oligomeric form (92 % and 90.5 % for autohydrolysis and dilute acid hydrolysis, respectively). Protein solubilization also presented relevant yields (35 % removal), with dilute acid hydrolysis allowing both higher oligosaccharides and protein productivities at a milder temperature. As compared to the current whole microalgae biomass-based upgrade strategies, the use of these mild processes is extremely promising, as they will enable the future co-production of added-value oligosaccharides, and protein, which can be relevant co-products of a biofuels-based biorefinery.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMartins, Pedro L... [et.al.] - Effective fractionation of microalgae biomass as an initial step for its utilization as a bioenergy feedstock. In: Energy Conversion and Management: X, 2022, vol. 16, article nº 100317pt_PT
dc.identifier.doi10.1016/j.ecmx.2022.100317pt_PT
dc.identifier.issn2590-1745
dc.identifier.urihttp://hdl.handle.net/10400.9/3977
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationInnovative valorisation of microalgal by-products as feedstock for biorefineries
dc.relationBiomass and Bioenergy Research Infrastructure
dc.relation.publisherversionhttps://doi.org/10.1016/j.ecmx.2022.100317pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectMicroalgaept_PT
dc.subjectScenedesmus obliquuspt_PT
dc.subjectAutohydrolysispt_PT
dc.subjectBiorefinerypt_PT
dc.subjectOligosaccharidespt_PT
dc.subjectPre-treatmentpt_PT
dc.titleEffective fractionation of microalgae biomass as an initial step for its utilization as a bioenergy feedstockpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInnovative valorisation of microalgal by-products as feedstock for biorefineries
oaire.awardTitleBiomass and Bioenergy Research Infrastructure
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F121704%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9444 - RNIIIE/PINFRA%2F22059%2F2016/PT
oaire.citation.titleEnergy Conversion and Management: Xpt_PT
oaire.citation.volume16pt_PT
oaire.fundingStream9444 - RNIIIE
person.familyNameDelgado dos Reis
person.familyNameDuarte
person.familyNameCarvalheiro
person.givenNameAlberto José
person.givenNameLuís
person.givenNameFlorbela
person.identifier59799
person.identifier.ciencia-idE317-E8DB-14E3
person.identifier.ciencia-id7F15-9BC9-79AA
person.identifier.ciencia-id4016-9476-B97D
person.identifier.orcid0000-0002-1405-9981
person.identifier.orcid0000-0001-5820-3669
person.identifier.orcid0000-0002-0270-4832
person.identifier.ridC-1430-2008
person.identifier.ridL-1860-2014
person.identifier.scopus-author-id56649966600
person.identifier.scopus-author-id6603247136
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
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relation.isAuthorOfPublication844a40eb-c914-4b16-9888-d58f7beb22e0
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