Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/3048
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dc.contributor.authorMoniz, Patrícia-
dc.contributor.authorSerralheiro, Cláudia-
dc.contributor.authorMatos, Cristina T.-
dc.contributor.authorBoeriu, Carmen G.-
dc.contributor.authorFrissen, Augustinus E.-
dc.contributor.authorDuarte, Luís C.-
dc.contributor.authorRoseiro, Luísa-
dc.contributor.authorPereira, Helena-
dc.contributor.authorCarvalheiro, Florbela-
dc.date.accessioned2018-09-06T15:16:57Z-
dc.date.available2018-09-06T15:16:57Z-
dc.date.issued2018-
dc.identifier.citationMoniz, Patrícia; Serralheiro, Cláudia; Matos, Cristina T. [et.al.]. - Membrane separation and characterisation of lignin and its derived products obtained by a mild ethanol organosolv treatment of rice straw. In: Process Biochemistry, 2018, Vol. 65, p. 136-145pt_PT
dc.identifier.issn1359-5113-
dc.identifier.urihttp://hdl.handle.net/10400.9/3048-
dc.description.abstractABSTRACT: An organosolv process using ethanol-water was optimized in order to recover high quality lignin from rice-straw previously pre-treated by autohydrolysis at 210 °C. The results showed a selective and appreciable removal of lignin under very mild conditions and the highest delignification yield occurred at 30 °C. The lignin extracts were characterised using capillary zone electrophoresis (CZE), size exclusion chromatography (SEC), Fourier transform infrared spectroscopy (FT-IR) and 31P-NMR, and two-dimensional heteronuclear single quantum correlation NMR spectroscopy (2D-HSQC NMR), which enabled the identification of low molecular weight lignins with a syringyl/guaiacyl ratio of about 0.74 containing phenolic compounds with potential bioactive properties. In order to separate the target compounds, membrane technology has been used and an enriched extract containing value-added phenolic compounds such as tricin, vanillin, ferulic acid and p-coumaric acid was obtained. High membrane efficiency (around 80%) was obtained for target compounds.pt_PT
dc.language.isoengpt_PT
dc.publisherElvesierpt_PT
dc.relationProject "Products from lignocellulose" (EIB 10.013)pt_PT
dc.relationProject SEC-Milho (PRODER 43314)pt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F48421%2F2008/PTpt_PT
dc.relationPEst- UID/AGR0239/2013pt_PT
dc.rightsopenAccesspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPhenolic compoundspt_PT
dc.subjectPre-treatmentpt_PT
dc.subjectAgricultural Wastespt_PT
dc.subjectRice Strawpt_PT
dc.subjectLigninpt_PT
dc.subjectWastes valorisationpt_PT
dc.titleMembrane separation and characterisation of lignin and its derived products obtained by a mild ethanol organosolv treatment of rice strawpt_PT
dc.typearticlept_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
degois.publication.firstPage136pt_PT
degois.publication.lastPage145pt_PT
degois.publication.titleProcess Biochemistrypt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.procbio.2017.11.012pt_PT
dc.peerreviewedyespt_PT
degois.publication.volume65pt_PT
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