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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
26/07/2024 |
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Data da última atualização: |
27/11/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AVELINO, F.; FELIPE, V. T. de A.; DIAS, M. T.; NOVAIS, L. M. R. de; D'OCA, C. da R. M.; MARQUES NETO, F. P.; SOARES, A. K.; MAGALHAES, W. L. E.; MAZZETTO, S. E.; LOMONACO, D. |
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Afiliação: |
FRANCISCO AVELINO, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO CEARÁ; VINÍCIUS TAVEIRA DE ANDRADE FELIPE, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO CEARÁ; MATHEUS TEIXEIRA DIAS, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO CEARÁ; LEICE MILLA RIBEIRO DE NOVAIS, UNIVERSIDADE FEDERAL DO PARANÁ; CAROLINE DA ROS MONTES D'OCA, UNIVERSIDADE FEDERAL DO PARANÁ; FRANCISCO PEREIRA MARQUES NETO, SENAI; ALINE KROLOW SOARES, SENAI; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; SELMA E. MAZZETTO, UNIVERSIDADE FEDERAL DO CEARÁ; DIEGO LOMONACO, UNIVERSIDADE FEDERAL DO CEARÁ. |
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Título: |
Unraveling the structural aspects of microwave-assisted OrganoCat-based coconut shell lignins: an eco-friendly route for obtaining bio-based antioxidants. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
International Journal of Biological Macromolecules, v. 274, 133349, 2024. |
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ISSN: |
0141-8130 |
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DOI: |
https://doi.org/10.1016/j.ijbiomac.2024.133349 |
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Idioma: |
Português |
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Conteúdo: |
New routes for biomass valorization have been developing by the scientific community. The aim of this work was developing a novel OrganoCat-based protocol and deeply understand the structure of the obtained lignins. Microwave-assisted OrganoCat-based process was performed using a biphasic system (ethyl acetate and oxalic acid or HCl) at mild conditions. OrganoCat-based lignins (OCLs) were characterized by compositional analysis, FTIR, 1H, 13C, 1H–13C HSQC, 31P NMR, TGA and GPC. The solubility of OCLs in different organic solvents and their antioxidant capacity against DPPH• were investigated. The spectroscopic analyses showed that OCLs have high residual extractives and the lignin motifs were preserved. OCLs have presented lower thermal stability than MWL, but showed great antioxidant activities and high solubility in a wide range of organic solvents. A novel biorefinery protocol yielded coconut shell lignins with peculiar structural and compositional features and several technological applications through an eco-friendly, sustainable and relatively low-cost biphasic pulping process. |
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Palavras-Chave: |
Biomass valorization; Biorrefinaria; Biphasic system; Casca de coco; Downstream processing; Lignin platform; Lignin valorization; Sistema bifásico. |
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Thesagro: |
Biomassa; Lignina. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02286naa a2200373 a 4500
001 2165991
005 2024-11-27
008 2024 bl uuuu u00u1 u #d
022 $a0141-8130
024 7 $ahttps://doi.org/10.1016/j.ijbiomac.2024.133349$2DOI
100 1 $aAVELINO, F.
245 $aUnraveling the structural aspects of microwave-assisted OrganoCat-based coconut shell lignins$ban eco-friendly route for obtaining bio-based antioxidants.$h[electronic resource]
260 $c2024
520 $aNew routes for biomass valorization have been developing by the scientific community. The aim of this work was developing a novel OrganoCat-based protocol and deeply understand the structure of the obtained lignins. Microwave-assisted OrganoCat-based process was performed using a biphasic system (ethyl acetate and oxalic acid or HCl) at mild conditions. OrganoCat-based lignins (OCLs) were characterized by compositional analysis, FTIR, 1H, 13C, 1H–13C HSQC, 31P NMR, TGA and GPC. The solubility of OCLs in different organic solvents and their antioxidant capacity against DPPH• were investigated. The spectroscopic analyses showed that OCLs have high residual extractives and the lignin motifs were preserved. OCLs have presented lower thermal stability than MWL, but showed great antioxidant activities and high solubility in a wide range of organic solvents. A novel biorefinery protocol yielded coconut shell lignins with peculiar structural and compositional features and several technological applications through an eco-friendly, sustainable and relatively low-cost biphasic pulping process.
650 $aBiomassa
650 $aLignina
653 $aBiomass valorization
653 $aBiorrefinaria
653 $aBiphasic system
653 $aCasca de coco
653 $aDownstream processing
653 $aLignin platform
653 $aLignin valorization
653 $aSistema bifásico
700 1 $aFELIPE, V. T. de A.
700 1 $aDIAS, M. T.
700 1 $aNOVAIS, L. M. R. de
700 1 $aD'OCA, C. da R. M.
700 1 $aMARQUES NETO, F. P.
700 1 $aSOARES, A. K.
700 1 $aMAGALHAES, W. L. E.
700 1 $aMAZZETTO, S. E.
700 1 $aLOMONACO, D.
773 $tInternational Journal of Biological Macromolecules$gv. 274, 133349, 2024.
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Embrapa Florestas (CNPF) |
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| 1. |  | BAROIS, I.; VELASQUEZ, E.; LAVELLE, P.; NEGRETE-YANKELEVICH, S; GARCÍA, J. A.; SANTOS, M.; ÁLVAREZ-SÁNCHEZ, J.; CASTILLO-CAMPOS, G.; CRAM, S.; FRAGOSO, C; FRANCO-NAVARRO, F.; MARTÍNEZ-ROMERO, E.; MEZA, E.; MORÓN, M. A.; RODRÍGUEZ, P.; ROJAS, P.; SOSA, V.; TREJO, D.; VARELA, L.; BUENO-VILLEGAS, J.; GÓMEZ, J. A.; SORMANI, C. Soil quality parameters that determine the below ground biodiversity in Los Tuxtlas Veracruz Mexico. In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.| Biblioteca(s): Embrapa Florestas. |
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