Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release

The development of sustainable bioplastic matrices for controlled micronutrient delivery represents a promising strategy in the agri-food and biomedical sectors. This study investigates the influence of plasticizer type (glycerol, water and their mixtures) and processing temperature (70–110 °C) on t...

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Authors: Castro Criado, Daniel; Capezza, Antonio J.; Romero García, Alberto; Jiménez Rosado, Mercedes
Format: Article
Status:Published version
Publication date:2025
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/181976
Online Access:https://hdl.handle.net/11441/181976
https://doi.org/10.3390/polym17233209
Access Level:Open access
Keyword:Soy protein-based matrices
Plasticizers
Controlled micronutrient delivery
Iron release
Extrusion processing
Biodegradable matrices
Sustainable bioplastics
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author Castro Criado, Daniel
author2 Capezza, Antonio J.
Romero García, Alberto
Jiménez Rosado, Mercedes
author2_role author
author
author
author_browse Capezza, Antonio J.
Castro Criado, Daniel
Jiménez Rosado, Mercedes
Romero García, Alberto
author_facet Castro Criado, Daniel
Capezza, Antonio J.
Romero García, Alberto
Jiménez Rosado, Mercedes
author_role author
collection idUS. Depósito de Investigación de la Universidad de Sevilla
description The development of sustainable bioplastic matrices for controlled micronutrient delivery represents a promising strategy in the agri-food and biomedical sectors. This study investigates the influence of plasticizer type (glycerol, water and their mixtures) and processing temperature (70–110 °C) on the fabrication and functional properties of extruded soy protein-based matrices for iron release. Results show that both the nature of the plasticizer and the extrusion temperature critically affect the microstructure and mechanical behavior of the matrices. Specifically, an intermediate glycerol/water ratio (50/50) during extrusion at 90 °C significantly improves matrix resistance, making it optimal for iron-controlled release. These findings underscore the crucial role of formulation and thermal parameters in engineering protein-based delivery systems, thereby paving the way for the design of next-generation biodegradable functional materials.
eu_rights_str_mv openAccess
format article
id ES_cd8a4baffc6acd5743888f2fb2c5cc78
institution Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
network_acronym_str ES
network_name_str España
oai_identifier_str oai:idus.us.es:11441/181976
publishDate 2025
publishDateSort 2025
publisher MDPI
publisherStr MDPI
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
spelling Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release Castro Criado, Daniel Capezza, Antonio J. Romero García, Alberto Jiménez Rosado, Mercedes Soy protein-based matrices Plasticizers Controlled micronutrient delivery Iron release Extrusion processing Biodegradable matrices Sustainable bioplastics The development of sustainable bioplastic matrices for controlled micronutrient delivery represents a promising strategy in the agri-food and biomedical sectors. This study investigates the influence of plasticizer type (glycerol, water and their mixtures) and processing temperature (70–110 °C) on the fabrication and functional properties of extruded soy protein-based matrices for iron release. Results show that both the nature of the plasticizer and the extrusion temperature critically affect the microstructure and mechanical behavior of the matrices. Specifically, an intermediate glycerol/water ratio (50/50) during extrusion at 90 °C significantly improves matrix resistance, making it optimal for iron-controlled release. These findings underscore the crucial role of formulation and thermal parameters in engineering protein-based delivery systems, thereby paving the way for the design of next-generation biodegradable functional materials. MDPI https://hdl.handle.net/11441/181976 https://doi.org/10.3390/polym17233209
spellingShingle Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release
Castro Criado, Daniel
Soy protein-based matrices
Plasticizers
Controlled micronutrient delivery
Iron release
Extrusion processing
Biodegradable matrices
Sustainable bioplastics
status_str publishedVersion
title Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release
title_full Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release
title_fullStr Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release
title_full_unstemmed Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release
title_short Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release
title_sort Tailoring the Properties of Soy Protein-Based Bioplastics via Plasticizer Composition and Extrusion Temperature for Controlled Iron Release
topic Soy protein-based matrices
Plasticizers
Controlled micronutrient delivery
Iron release
Extrusion processing
Biodegradable matrices
Sustainable bioplastics
topic_facet Soy protein-based matrices
Plasticizers
Controlled micronutrient delivery
Iron release
Extrusion processing
Biodegradable matrices
Sustainable bioplastics
url https://hdl.handle.net/11441/181976
https://doi.org/10.3390/polym17233209