Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil

This work focused on the characterization of lignin residues from bioethanol production of olive stones (OS) and the use of these residues to chemically thicken epoxidized linseed oil (ELO). OS were processed by an acid/steam explosion pretreatment, followed by pre-saccharification, using different...

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Detalles Bibliográficos
Autores: Cortés-Triviño, Esperanza, Valencia, Concepción, Franco, Jose María, Oliva, Jose Miguel, Manzanares, Paloma, Eugenio, M.Eugenia, Ibarra, David
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
Repositorio:Docu-menta. Repositorio Institucional del CIEMAT
Idioma:inglés
OAI Identifier:oai:dnet:documenta___::54f8c5abe357a438df98f5d25932c6ba
Acceso en línea:https://hdl.handle.net/20.500.14855/2939
Access Level:acceso abierto
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spelling Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oilCortés-Triviño, EsperanzaValencia, ConcepciónFranco, Jose MaríaOliva, Jose MiguelManzanares, PalomaEugenio, M.EugeniaIbarra, DavidThis work focused on the characterization of lignin residues from bioethanol production of olive stones (OS) and the use of these residues to chemically thicken epoxidized linseed oil (ELO). OS were processed by an acid/steam explosion pretreatment, followed by pre-saccharification, using different enzymedosages, and simultaneous saccharification and fermentation. The chemical composition of the OS lignin residues was analysed, revealing a high lignin content (66.6–69.5%), and lower quantities of glucan (17.4–19.3%) and xylan (2.8–2.9%). Whereas, the structural properties of OS lignin residues were characterized by Fourier-transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR), thermogravimetric analysis (TGA) and size exclusion chromatography (SEC). OS lignin residues displayed the main inter-unit linkages (-´ resinol (51.0–59.0%), followed by -O-4´ alkyl aryl ethers (27.0–35.2%) and -5´ phenylcoumaran (11.4–13.2%) substructures), high molecular weights (22000-25900 Da), low S/G ratios (1.2-1.5) and phenolic compounds (48–55 mg GAE/g lignin). Moreover, OS lignin residues were dispersed in ELO to obtain thickened formulations, which were characterized by FTIR and NMR. Oil thickening was achieved by promoting the chemical crosslinking between lignocellulose hydroxyl groups and ELO epoxy groups, enabling the compatibilization of both components. Up to 10-fold viscosity increment of the resulting thickened formulations in relation to ELO’s viscosity was observed. Besides, thickened formulations exhibited viscoelastic properties, evincing oil structuration to some extent.Springer Nature20242024-05-0620242024-04-0920242024-04-09journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14855/2939reponame:Docu-menta. Repositorio Institucional del CIEMATinstname:Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dnet:documenta___::54f8c5abe357a438df98f5d25932c6ba2026-06-18T12:40:47Z
dc.title.none.fl_str_mv Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
title Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
spellingShingle Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
Cortés-Triviño, Esperanza
title_short Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
title_full Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
title_fullStr Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
title_full_unstemmed Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
title_sort Assessment of lignin residues from bioethanol production of olive stones as green chemical thickener of epoxidized linseed oil
dc.creator.none.fl_str_mv Cortés-Triviño, Esperanza
Valencia, Concepción
Franco, Jose María
Oliva, Jose Miguel
Manzanares, Paloma
Eugenio, M.Eugenia
Ibarra, David
author Cortés-Triviño, Esperanza
author_facet Cortés-Triviño, Esperanza
Valencia, Concepción
Franco, Jose María
Oliva, Jose Miguel
Manzanares, Paloma
Eugenio, M.Eugenia
Ibarra, David
author_role author
author2 Valencia, Concepción
Franco, Jose María
Oliva, Jose Miguel
Manzanares, Paloma
Eugenio, M.Eugenia
Ibarra, David
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv
description This work focused on the characterization of lignin residues from bioethanol production of olive stones (OS) and the use of these residues to chemically thicken epoxidized linseed oil (ELO). OS were processed by an acid/steam explosion pretreatment, followed by pre-saccharification, using different enzymedosages, and simultaneous saccharification and fermentation. The chemical composition of the OS lignin residues was analysed, revealing a high lignin content (66.6–69.5%), and lower quantities of glucan (17.4–19.3%) and xylan (2.8–2.9%). Whereas, the structural properties of OS lignin residues were characterized by Fourier-transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR), thermogravimetric analysis (TGA) and size exclusion chromatography (SEC). OS lignin residues displayed the main inter-unit linkages (-´ resinol (51.0–59.0%), followed by -O-4´ alkyl aryl ethers (27.0–35.2%) and -5´ phenylcoumaran (11.4–13.2%) substructures), high molecular weights (22000-25900 Da), low S/G ratios (1.2-1.5) and phenolic compounds (48–55 mg GAE/g lignin). Moreover, OS lignin residues were dispersed in ELO to obtain thickened formulations, which were characterized by FTIR and NMR. Oil thickening was achieved by promoting the chemical crosslinking between lignocellulose hydroxyl groups and ELO epoxy groups, enabling the compatibilization of both components. Up to 10-fold viscosity increment of the resulting thickened formulations in relation to ELO’s viscosity was observed. Besides, thickened formulations exhibited viscoelastic properties, evincing oil structuration to some extent.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-05-06
2024
2024-04-09
2024
2024-04-09
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14855/2939
url https://hdl.handle.net/20.500.14855/2939
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:Docu-menta. Repositorio Institucional del CIEMAT
instname:Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
instname_str Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
reponame_str Docu-menta. Repositorio Institucional del CIEMAT
collection Docu-menta. Repositorio Institucional del CIEMAT
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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