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dc.contributor.author
Cáceres, L. M.
dc.contributor.author
Tourn, Silvana Cecilia
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dc.contributor.author
Ruiz, Carlos Raúl
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Sequeira, Alfredo Fabian
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dc.contributor.author
Dagnino, Eliana Paola
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dc.date.available
2024-05-29T09:46:13Z
dc.date.issued
2023
dc.identifier.citation
Carboxymethylcellulose obtained from lignocellulosic waste and its use as a biopolymeric matrix; 11th World Congress of Chemical Engineering; Buenos Aires; Argentina; 2023; 645-645
dc.identifier.uri
http://hdl.handle.net/11336/236355
dc.description.abstract
The increase in the rate of production and accumulation of solid waste and the search for sustainable environmental solutions imposes the need to introduce advanced technologies to manage it efficiently. In this context, this work aims to obtain carboxymethylcellulose (CMC) from lignocellulosic waste and later use it in the encapsulation of liquid smoke and essential oils. Thus, a product of higher value can be obtained from an abundant and readably available waste product of northeastern Argentina`s agroforestal industry. Rice husk samples for this research were provided by a local company. The rice husk was treated in a biorefinery scheme (Acid hydrolysis, 0.3% w/V, 150°C, 30 min; followed by organosolv treatment, NaOH-ethanol-water, 160°C, 60min, and alkaline treatment). Subsequently, CMC was obtained, esterifying the unbleached cellulose obtained from the mentioned raw material, using a modification of the Druvacell method. The unbleached cellulose is pretreated with isopropanol and sodium hydroxide to promote fiber swelling and ionization of hydroxyl groups, and subsequently esterification with monochloroacetic acid. On the other hand, bio-oil was obtained by pyrolysis, at 400 °C for 120 min, from exhausted Schinopsis balansae (quebracho colorado) sawdust and the water-soluble fraction produced was refined, representing 34.6% based on the residual biomass fed. Finally, the refined fraction was characterized, to identify the improvement and its quality as liquid smoke to be encapsulated.The CMC obtained was used as a component, together with sodium alginate, of a biopolymeric matrix to encapsulate the water-soluble liquid smoke and hydrophobic essential oil. The raw material was characterized by determining its structural components, the substituent groups in CMC were recognized by FTIR and the degree of substitution was determined. In the production of microcapsules, using standard methods the performance and efficiency of the process were determined.On the other hand, the post-treatment rice husk is composed of 94% cellulose, and the rest is lignin and remaining inorganics. From it, it was possible to obtain a crude CMC with a purity greater than 70% and a degree of substitution greater than 0.6. The microencapsulation results show average yields greater than 55% and efficiencies greater than 90% for both encapsulated substances.With this work carried out, a very abundant residue could be valorized by obtaining CMC and using it in the microencapsulation of two chemically different substances. Good yields and efficiencies were obtained with both substances, with comparable results with other authors.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Asociación Argentina de Ingenieros Químicos
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CARBOXYMETHYLCELLULOSE
dc.subject
LIGNOCELLULOSIC WASTE
dc.subject
BIOREFINERY
dc.subject
ESSENTIAL OILS
dc.subject
LIQUID SMOKE
dc.subject.classification
Ingeniería de Procesos Químicos
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Carboxymethylcellulose obtained from lignocellulosic waste and its use as a biopolymeric matrix
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/conferenceObject
dc.type
info:ar-repo/semantics/documento de conferencia
dc.date.updated
2023-09-15T11:48:32Z
dc.journal.pagination
645-645
dc.journal.pais
Argentina
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dc.journal.ciudad
Buenos Aires
dc.description.fil
Fil: Cáceres, L. M.. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica Biológica; Argentina
dc.description.fil
Fil: Tourn, Silvana Cecilia. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica Biológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
dc.description.fil
Fil: Ruiz, Carlos Raúl. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica Biológica; Argentina
dc.description.fil
Fil: Sequeira, Alfredo Fabian. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica Biológica; Argentina
dc.description.fil
Fil: Dagnino, Eliana Paola. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica Biológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.wcce11.org/wc/template/Proceedings-Abstracts_WCCE11.pdf?
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Autor
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Autor
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Autor
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Autor
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dc.coverage
Internacional
dc.type.subtype
Congreso
dc.description.nombreEvento
11th World Congress of Chemical Engineering
dc.date.evento
2023-06-04
dc.description.ciudadEvento
Buenos Aires
dc.description.paisEvento
Argentina
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dc.type.publicacion
Book
dc.description.institucionOrganizadora
Asociación Argentina de Ingenieros Químicos
dc.source.libro
Proceedings of 11th World Congress of Chemical Engineering
dc.source.revista
WCCE11 Abstract Proceedings
dc.date.eventoHasta
2023-06-08
dc.type
Congreso
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