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Systematic diffusion-ordered spectroscopy for the selective determination of molecular weight in real lignins and fractions arising from base-catalyzed depolymerization reaction mixtures

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dc.contributor.authorCornejo Ibergallartu, Alfonso
dc.contributor.authorGarcía Yoldi, Íñigo
dc.contributor.authorGalilea Gonzalo, Rebeca
dc.contributor.authorHablich Alvarracin, Karina Lissett
dc.contributor.authorGil Idoate, María José
dc.contributor.authorMartínez Merino, Víctor
dc.contributor.departmentZientziakeu
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.contributor.departmentCienciases_ES
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernuaes
dc.date.accessioned2021-02-19T08:12:04Z
dc.date.available2021-05-18T23:00:13Z
dc.date.issued2020
dc.description.abstractThe valorization of biorefinery downstream lignin fractions is a key issue in increasing the sustainability of second-generation biofuels. The development of reliable methodologies for the selective determination of the apparent masses of the poly(hydroxy)-aromatic ethers arising from lignin depolymerization reaction is crucial. Diffusion-ordered spectroscopy (DOSY) has been tested to estimate the molecular weight in downstream biorefinery lignins and base-catalyzed depolymerization reaction mixtures. Excellent correlation was found in the calibration of molecular weight and diffusion coefficients with standards. DOSY permitted the selective estimation of the apparent masses of different fractions in the lignin and in the depolymerization reaction mixtures, providing a more profound knowledge of the reaction mixture composition than that obtained with traditional size-exclusion chromatography (SEC). Excellent correlations have been achieved in the estimation of the apparent masses of poly(hydroxy)-aromatic ethers between SEC and DOSY. This permits a reliable estimation of the molecular weight of different fractions in the lignin and in the depolymerization product, which is essential for their further applications.en
dc.description.sponsorshipFinancial support from The Government of Navarra under Project 'PC036-037 Biovalorización' and UNED-Fundación La Caixa 'LCF/PR/PR15/51100007' is sincerely acknowledged. Í.G.-Y. is grateful for the support from The Government of Navarra via the concession of a Technology Training Grant ('Beca de Formación de Tecnólogos').en
dc.embargo.lift2021-05-18
dc.embargo.terms2021-05-18
dc.format.extent74 p.
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.1021/acssuschemeng.0c01375
dc.identifier.issn2168-0485 (Electronic)
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/39255
dc.language.isoengen
dc.publisherAmerican Chemical Societyen
dc.relation.ispartofACS Sustainable Chemistry and Engineering, 2020, 8(23), 8638-8647en
dc.relation.publisherversionhttps://doi.org/10.1021/acssuschemeng.0c01375
dc.rights© 2020 American Chemical Societyen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.subjectBiorefinery ligninen
dc.subjectBase-catalyzed depolymerizationen
dc.subjectDOSY spectroscopyen
dc.subjectSelective mass determinationen
dc.titleSystematic diffusion-ordered spectroscopy for the selective determination of molecular weight in real lignins and fractions arising from base-catalyzed depolymerization reaction mixturesen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.type.versioninfo:eu-repo/semantics/acceptedVersionen
dc.type.versionVersión aceptada / Onetsi den bertsioaes
dspace.entity.typePublication
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