Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding

The manufacture of eco-friendly bioplastic materials from renewable resources to replace petroleum-based plastics has attracted increasing attention. For many years, proteins, lipids and polysaccharides have been proposed as natural biopolymers sources to obtain biodegradable plastic materials. As b...

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Autores: Alonso González, María, Félix Ángel, Manuel, Romero García, Alberto
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/131298
Acceso en línea:https://hdl.handle.net/11441/131298
https://doi.org/10.1016/j.indcrop.2022.114767
Access Level:acceso abierto
Palabra clave:Bioplastics
Rice bran
Sustainability
Plasticizer
Injection moulding
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spelling Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection mouldingAlonso González, MaríaFélix Ángel, ManuelRomero García, AlbertoBioplasticsRice branSustainabilityPlasticizerInjection mouldingThe manufacture of eco-friendly bioplastic materials from renewable resources to replace petroleum-based plastics has attracted increasing attention. For many years, proteins, lipids and polysaccharides have been proposed as natural biopolymers sources to obtain biodegradable plastic materials. As by-product from the rice industry, rice bran, is an available and non-expensive resource of both proteins and starches, food groups that, properly processed, can be employed in the development of bioplastics. Plasticizers are essential for the manufacture of bioplastics and, when carbohydrate/protein mixtures are used, an adequate selection of plasticizers must be addressed. By these means, a material suitable for thermo-mechanical processing methods is obtained if starches are subjected to shear forces under high temperatures and water excess (gelatinisation). Moreover, additional polyol-based plasticizers, such as glycerol and sorbitol, allow obtaining reinforced products with improved elasticity when protein-based bioplastics are processed. The aim of the present study was to analyse the plasticizing effect of water combined with different proportions of glycerol or sorbitol, as well as their influence on the final bioplastic properties. Results indicate that higher water ratios produce stiffer bioplastics with improved viscoelastic moduli, maximum stress and Young´s modulus, while increasing the glycerol and sorbitol content leads to higher elasticities and water uptake capacities in general. Moreover, sorbitol seems to provide more suitable bioplastics with better tensile (up to 500% in Young´s modulus) and functional properties compared to glycerol.Ministerio de Ciencia e Innovación y FEDER RTI2018-097100-B-C21Premio Mensual Publicación Científica Destacada de la US. Escuela Politécnica SuperiorElsevierIngeniería QuímicaMinisterio de Ciencia e Innovación (MICIN). EspañaEuropean Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/131298https://doi.org/10.1016/j.indcrop.2022.114767reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésIndustrial Crops and Products, 180, 114767.RTI2018-097100-B-C21http://dx.doi.org/10.1016/j.indcrop.2022.114767info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1312982026-06-17T12:51:07Z
dc.title.none.fl_str_mv Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
title Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
spellingShingle Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
Alonso González, María
Bioplastics
Rice bran
Sustainability
Plasticizer
Injection moulding
title_short Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
title_full Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
title_fullStr Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
title_full_unstemmed Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
title_sort Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding
dc.creator.none.fl_str_mv Alonso González, María
Félix Ángel, Manuel
Romero García, Alberto
author Alonso González, María
author_facet Alonso González, María
Félix Ángel, Manuel
Romero García, Alberto
author_role author
author2 Félix Ángel, Manuel
Romero García, Alberto
author2_role author
author
dc.contributor.none.fl_str_mv Ingeniería Química
Ministerio de Ciencia e Innovación (MICIN). España
European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)
dc.subject.none.fl_str_mv Bioplastics
Rice bran
Sustainability
Plasticizer
Injection moulding
topic Bioplastics
Rice bran
Sustainability
Plasticizer
Injection moulding
description The manufacture of eco-friendly bioplastic materials from renewable resources to replace petroleum-based plastics has attracted increasing attention. For many years, proteins, lipids and polysaccharides have been proposed as natural biopolymers sources to obtain biodegradable plastic materials. As by-product from the rice industry, rice bran, is an available and non-expensive resource of both proteins and starches, food groups that, properly processed, can be employed in the development of bioplastics. Plasticizers are essential for the manufacture of bioplastics and, when carbohydrate/protein mixtures are used, an adequate selection of plasticizers must be addressed. By these means, a material suitable for thermo-mechanical processing methods is obtained if starches are subjected to shear forces under high temperatures and water excess (gelatinisation). Moreover, additional polyol-based plasticizers, such as glycerol and sorbitol, allow obtaining reinforced products with improved elasticity when protein-based bioplastics are processed. The aim of the present study was to analyse the plasticizing effect of water combined with different proportions of glycerol or sorbitol, as well as their influence on the final bioplastic properties. Results indicate that higher water ratios produce stiffer bioplastics with improved viscoelastic moduli, maximum stress and Young´s modulus, while increasing the glycerol and sorbitol content leads to higher elasticities and water uptake capacities in general. Moreover, sorbitol seems to provide more suitable bioplastics with better tensile (up to 500% in Young´s modulus) and functional properties compared to glycerol.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/131298
https://doi.org/10.1016/j.indcrop.2022.114767
url https://hdl.handle.net/11441/131298
https://doi.org/10.1016/j.indcrop.2022.114767
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Industrial Crops and Products, 180, 114767.
RTI2018-097100-B-C21
http://dx.doi.org/10.1016/j.indcrop.2022.114767
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
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