Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels

This study examines the rheological and structural characteristics of dispersions prepared from phycocyanin extract and psyllium fiber, with a particular emphasis on their potential applications in algae oil-in-water emulgels. The experimental design analyzed the rheological characteristics of dispe...

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Detalles Bibliográficos
Autores: Vela Albarrán, María, Santos García, Jenifer, Calero Romero, Nuria, Carrillo de la Fuente, Francisco, Trujillo-Cayado, Luis Alfonso
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/175029
Acceso en línea:https://hdl.handle.net/11441/175029
https://doi.org/10.1007/s11947-025-03834-5
Access Level:acceso abierto
Palabra clave:Algae oil
Emulgel
Phycocyanin
Psyllium
Rheology
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spelling Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil EmulgelsVela Albarrán, MaríaSantos García, JeniferCalero Romero, NuriaCarrillo de la Fuente, FranciscoTrujillo-Cayado, Luis AlfonsoAlgae oilEmulgelPhycocyaninPsylliumRheologyThis study examines the rheological and structural characteristics of dispersions prepared from phycocyanin extract and psyllium fiber, with a particular emphasis on their potential applications in algae oil-in-water emulgels. The experimental design analyzed the rheological characteristics of dispersions as a function of algae extract and fiber concentrations. The results showed that all dispersions exhibited shear-thinning behavior, with flow index values ranging from 0.09 to 0.33. The viscosity of the dispersions increased with psyllium concentration (consistency index varied from 0.38 to 130.38 Pa·sⁿ), while phycocyanin addition led to a viscosity decrease. Oscillatory tests confirmed the predominance of elastic behavior (G′ > G″), with storage modulus values increasing from 0.02 Pa at the lowest psyllium concentration to 121.30 Pa at the highest. Microstructural analysis supported these findings, showing denser networks in psyllium-rich dispersions, while phycocyanin addition led to a more porous structure. In emulgels, droplet size analysis indicated that phycocyanin reduced the Sauter mean diameter from 0.480 to 0.262 µm, whereas psyllium increased it up to 3.448 µm. Stability tests confirmed that higher concentrations of both biopolymers improved emulgel stability, as reflected in lower Turbiscan Stability Index values. These findings suggest that psyllium-phycocyanin dispersions are promising for the development of stable, structured emulsions with potential applications in food and pharmaceutical products.SpringerIngeniería QuímicaMinisterio de Ciencia e Innovación (MICIN). EspañaJunta de Andalucía2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/175029https://doi.org/10.1007/s11947-025-03834-5reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésFood and Bioprocess Technology, 18, 6365-6377.TED2021 - 131246BPROYEXCEL_00426https://doi.org/10.1007/s11947-025-03834-5info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1750292026-06-17T12:51:07Z
dc.title.none.fl_str_mv Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
title Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
spellingShingle Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
Vela Albarrán, María
Algae oil
Emulgel
Phycocyanin
Psyllium
Rheology
title_short Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
title_full Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
title_fullStr Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
title_full_unstemmed Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
title_sort Phycocyanin-Psyllium Gel Systems: Rheological Insights and Functional Applications in Algae Oil Emulgels
dc.creator.none.fl_str_mv Vela Albarrán, María
Santos García, Jenifer
Calero Romero, Nuria
Carrillo de la Fuente, Francisco
Trujillo-Cayado, Luis Alfonso
author Vela Albarrán, María
author_facet Vela Albarrán, María
Santos García, Jenifer
Calero Romero, Nuria
Carrillo de la Fuente, Francisco
Trujillo-Cayado, Luis Alfonso
author_role author
author2 Santos García, Jenifer
Calero Romero, Nuria
Carrillo de la Fuente, Francisco
Trujillo-Cayado, Luis Alfonso
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Química
Ministerio de Ciencia e Innovación (MICIN). España
Junta de Andalucía
dc.subject.none.fl_str_mv Algae oil
Emulgel
Phycocyanin
Psyllium
Rheology
topic Algae oil
Emulgel
Phycocyanin
Psyllium
Rheology
description This study examines the rheological and structural characteristics of dispersions prepared from phycocyanin extract and psyllium fiber, with a particular emphasis on their potential applications in algae oil-in-water emulgels. The experimental design analyzed the rheological characteristics of dispersions as a function of algae extract and fiber concentrations. The results showed that all dispersions exhibited shear-thinning behavior, with flow index values ranging from 0.09 to 0.33. The viscosity of the dispersions increased with psyllium concentration (consistency index varied from 0.38 to 130.38 Pa·sⁿ), while phycocyanin addition led to a viscosity decrease. Oscillatory tests confirmed the predominance of elastic behavior (G′ > G″), with storage modulus values increasing from 0.02 Pa at the lowest psyllium concentration to 121.30 Pa at the highest. Microstructural analysis supported these findings, showing denser networks in psyllium-rich dispersions, while phycocyanin addition led to a more porous structure. In emulgels, droplet size analysis indicated that phycocyanin reduced the Sauter mean diameter from 0.480 to 0.262 µm, whereas psyllium increased it up to 3.448 µm. Stability tests confirmed that higher concentrations of both biopolymers improved emulgel stability, as reflected in lower Turbiscan Stability Index values. These findings suggest that psyllium-phycocyanin dispersions are promising for the development of stable, structured emulsions with potential applications in food and pharmaceutical products.
publishDate 2025
dc.date.none.fl_str_mv 2025
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/11441/175029
https://doi.org/10.1007/s11947-025-03834-5
url https://hdl.handle.net/11441/175029
https://doi.org/10.1007/s11947-025-03834-5
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Food and Bioprocess Technology, 18, 6365-6377.
TED2021 - 131246B
PROYEXCEL_00426
https://doi.org/10.1007/s11947-025-03834-5
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 Springer
publisher.none.fl_str_mv Springer
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
repository.mail.fl_str_mv
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score 15.81155

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