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dc.contributor.authorDomínguez-Robles, J.
dc.contributor.authorEspinosa, E.
dc.contributor.authorSánchez Serrano, Rafael
dc.contributor.authorDavide, Savy
dc.contributor.authorMazzei, Pierluigi
dc.contributor.authorPiccolo, Alessandro
dc.contributor.authorRodríguez, A.
dc.date.accessioned2017-11-09T11:22:20Z
dc.date.available2017-11-09T11:22:20Z
dc.date.issued2017
dc.identifier.urihttp://hdl.handle.net/10396/15390
dc.description.abstractSome agricultural residues such as wheat or barley straw, as well as certain fast-growing plants like Leucaena leucocephala and Chamaecytisus proliferus, could be used as raw materials for the paper industry as an alternative to traditional plants (eucalyptus, pine, etc.). In the present study, four types of lignin obtained from the spent liquors produced by the pulping processes using the abovementioned feedstocks were isolated and characterized. Lignin samples were acquired through an acid precipitation from these spent liquors. The characterization of the precipitated lignin samples were performed using a Fourier transform infrared spectroscopy (FT-IR) and both liquid- and solid-state nuclear magnetic resonance spectroscopy (NMR) to analyse the chemical structure, and thermogravimetric analysis (TGA) for determining the thermal properties. Additionally, chemical composition of lignin fractions was also measured. Even though they were of different botanical origin, all the studied samples except for wheat straw lignin had a similar chemical composition and thermal behaviour, and identical chemical structure. Wheat straw lignin showed a greater amount of Klason lignin and lower carbohydrate content. Furthermore, this lignin sample showed a higher thermal stability and significantly different cross-peak patterns in the 2D-NMR experiments. The molecular structures corresponding to p-coumarate (PCA), ferulate (FA) and cinnamyl aldehyde end-groups (J) were only detected in wheat isolated lignines_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightshttps://creativecommons.org/licenses/by/4.0/es_ES
dc.sourceInternational Journal of Molecular Sciences 18(2), 327 (2017)es_ES
dc.subjectAgricultural residueses_ES
dc.subjectAlkaline extractiones_ES
dc.subjectSpent liquorses_ES
dc.subjectSoda lignines_ES
dc.subjectPhysico-chemical propertieses_ES
dc.subjectStructural elucidationes_ES
dc.titleIsolation and Characterization of Gramineae and Fabaceae Soda Ligninses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttp://dx.doi.org/doi:10.3390/ijms18020327es_ES
dc.relation.projectIDGobierno de España. CTQ2013-46804-C2-2-Res_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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