Ulva spp. Casting and melt compounding films_Data

This study investigates the valorisation of Ulva spp. biomass after Autohydrolysis (AH) extraction performed at 120–200 °C as feedstock for biopolymer films, providing the first comparative assessment of casting and melt-compounding techniques. Compositional analysis confirmed that the biomass conta...

Descripción completa

Detalles Bibliográficos
Autores: Sanz, Vanesa, Baltrusch, Kai L., Torres, María Dolores, Domínguez, Herminia, Fabra, María José, López-Rubio, Amparo
Tipo de recurso: conjunto de datos
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/406968
Acceso en línea:http://hdl.handle.net/10261/406968
https://doi.org/10.20350/digitalCSIC/17743
Access Level:acceso abierto
Palabra clave:Autohydrolysis
Bio-based films
Food packaging
Green seaweed
Revalorization
Waste
food packaging
seaweeds
wastes
id ES_261f5682fd09faac6f73fadb47d37552
oai_identifier_str oai:digital.csic.es:10261/406968
network_acronym_str ES
network_name_str España
repository_id_str
spelling Ulva spp. Casting and melt compounding films_DataSanz, VanesaBaltrusch, Kai L.Torres, María DoloresDomínguez, HerminiaFabra, María JoséLópez-Rubio, AmparoAutohydrolysisBio-based filmsFood packagingGreen seaweedRevalorizationWastefood packagingseaweedswastesThis study investigates the valorisation of Ulva spp. biomass after Autohydrolysis (AH) extraction performed at 120–200 °C as feedstock for biopolymer films, providing the first comparative assessment of casting and melt-compounding techniques. Compositional analysis confirmed that the biomass contained carbohydrates (27–36 %, with 4–24 % of cellulose), proteins (11–26 %) and ashes (10–42 %). The seaweed biomass also contained phenolic compounds (12–64 mg Gallic Acid Equivalents (GAE)/g sample), which exhibited antioxidant properties (5–11 mg Trolox Equivalent Antioxidant Capacity (TEAC)/g sample). Lower molecular weights were observed with increasing AH temperature, indicating partial depolymerization of the macromolecules. Films were characterized using Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), and X-Ray Diffraction (XRD), together with mechanical and water-barrier properties. The casting method produced continuous, slightly transparent films with Internal Transmittance (Ti) values of 1–40 %, higher stiffness (Young's Modulus, E: 399.83–1852.85 MPa), lower flexibility (Elongation at Break, ɛb: 1.34–12.28 %), low Water Vapor Permeability (WVP: 1.53–2.28 × 10−10 g m·Pa−1·s−1·m−2) and moderate hydrophilicity (contact angle: 57.95°–65.60°). Melt-compounding films were opaque, more homogeneous films with lower stiffness but, in some cases, greater extensibility (ɛb: 1.31–13.33 %), higher WVP (7.31–9.12 × 10−10 g m·Pa−1·s−1·m−2) and increased hydrophilicity (contact angle: 23–44°). Thermal–mechanical processing also influenced molecular organization and the distribution of hydrophilic groups. Overall, this study demonstrates, for the first time, that AH residues derived from Ulva spp. can be transformed into bio-based films with tunable structural, mechanical, and barrier properties.V. Sanz thanks for her postdoctoral grant (JDC2022-048795-I) funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR. This work was supported by grants PID2022-138328OB-C21, PID2021-124017-B-I00 and CEX2021-001189-S funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”.With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2021-001189-S).Peer reviewedDIGITAL.CSICAgencia Estatal de Investigación (España)Ministerio de Ciencia e Innovación (España)European CommissionSanz, Vanesa [0000-0001-5787-7952]Fabra, María José [0000-0001-6726-4455]López-Rubio, Amparo [0000-0001-6469-9402]Sanz, Vanesa [v.sanz@iata.csic.es]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/datasethttp://purl.org/coar/resource_type/c_ddb1application/vnd.ms-excelhttp://hdl.handle.net/10261/406968https://doi.org/10.20350/digitalCSIC/17743reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-138328OB-C21info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001189-SSanz, V.; Baltrusch, K.L.; Torres, M.D.; Domínguez, H.; Fabra, M.J.; López-Rubio, A.. Valorisation of Ulva spp. green seaweed and its residues from pressurized hot water extraction: A comparative study of casting and melt-compounding techniques for film production; https://doi.org/10.1016/j.foodhyd.2025.112087. http://hdl.handle.net/10261/403162Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4069682026-05-22T06:33:51Z
dc.title.none.fl_str_mv Ulva spp. Casting and melt compounding films_Data
title Ulva spp. Casting and melt compounding films_Data
spellingShingle Ulva spp. Casting and melt compounding films_Data
Sanz, Vanesa
Autohydrolysis
Bio-based films
Food packaging
Green seaweed
Revalorization
Waste
food packaging
seaweeds
wastes
title_short Ulva spp. Casting and melt compounding films_Data
title_full Ulva spp. Casting and melt compounding films_Data
title_fullStr Ulva spp. Casting and melt compounding films_Data
title_full_unstemmed Ulva spp. Casting and melt compounding films_Data
title_sort Ulva spp. Casting and melt compounding films_Data
dc.creator.none.fl_str_mv Sanz, Vanesa
Baltrusch, Kai L.
Torres, María Dolores
Domínguez, Herminia
Fabra, María José
López-Rubio, Amparo
author Sanz, Vanesa
author_facet Sanz, Vanesa
Baltrusch, Kai L.
Torres, María Dolores
Domínguez, Herminia
Fabra, María José
López-Rubio, Amparo
author_role author
author2 Baltrusch, Kai L.
Torres, María Dolores
Domínguez, Herminia
Fabra, María José
López-Rubio, Amparo
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Ministerio de Ciencia e Innovación (España)
European Commission
Sanz, Vanesa [0000-0001-5787-7952]
Fabra, María José [0000-0001-6726-4455]
López-Rubio, Amparo [0000-0001-6469-9402]
Sanz, Vanesa [v.sanz@iata.csic.es]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Autohydrolysis
Bio-based films
Food packaging
Green seaweed
Revalorization
Waste
food packaging
seaweeds
wastes
topic Autohydrolysis
Bio-based films
Food packaging
Green seaweed
Revalorization
Waste
food packaging
seaweeds
wastes
description This study investigates the valorisation of Ulva spp. biomass after Autohydrolysis (AH) extraction performed at 120–200 °C as feedstock for biopolymer films, providing the first comparative assessment of casting and melt-compounding techniques. Compositional analysis confirmed that the biomass contained carbohydrates (27–36 %, with 4–24 % of cellulose), proteins (11–26 %) and ashes (10–42 %). The seaweed biomass also contained phenolic compounds (12–64 mg Gallic Acid Equivalents (GAE)/g sample), which exhibited antioxidant properties (5–11 mg Trolox Equivalent Antioxidant Capacity (TEAC)/g sample). Lower molecular weights were observed with increasing AH temperature, indicating partial depolymerization of the macromolecules. Films were characterized using Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), and X-Ray Diffraction (XRD), together with mechanical and water-barrier properties. The casting method produced continuous, slightly transparent films with Internal Transmittance (Ti) values of 1–40 %, higher stiffness (Young's Modulus, E: 399.83–1852.85 MPa), lower flexibility (Elongation at Break, ɛb: 1.34–12.28 %), low Water Vapor Permeability (WVP: 1.53–2.28 × 10−10 g m·Pa−1·s−1·m−2) and moderate hydrophilicity (contact angle: 57.95°–65.60°). Melt-compounding films were opaque, more homogeneous films with lower stiffness but, in some cases, greater extensibility (ɛb: 1.31–13.33 %), higher WVP (7.31–9.12 × 10−10 g m·Pa−1·s−1·m−2) and increased hydrophilicity (contact angle: 23–44°). Thermal–mechanical processing also influenced molecular organization and the distribution of hydrophilic groups. Overall, this study demonstrates, for the first time, that AH residues derived from Ulva spp. can be transformed into bio-based films with tunable structural, mechanical, and barrier properties.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/dataset
http://purl.org/coar/resource_type/c_ddb1
format dataset
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/406968
https://doi.org/10.20350/digitalCSIC/17743
url http://hdl.handle.net/10261/406968
https://doi.org/10.20350/digitalCSIC/17743
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-138328OB-C21
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001189-S
Sanz, V.; Baltrusch, K.L.; Torres, M.D.; Domínguez, H.; Fabra, M.J.; López-Rubio, A.. Valorisation of Ulva spp. green seaweed and its residues from pressurized hot water extraction: A comparative study of casting and melt-compounding techniques for film production; https://doi.org/10.1016/j.foodhyd.2025.112087. http://hdl.handle.net/10261/403162
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/vnd.ms-excel
dc.publisher.none.fl_str_mv DIGITAL.CSIC
publisher.none.fl_str_mv DIGITAL.CSIC
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869404803255238656
score 15.812455

Similares en LA Referencia