Functional Biopolymer Coatings with Nisin/Na-EDTA as an Active Agent: Enhancing Seafood Preservation

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dc.article.number2100
dc.catalogadorpva
dc.contributor.authorSilva-Vera, Wladimir
dc.contributor.authorEscobar Aguirre, Sebastián Gonzalo
dc.contributor.authorMora Luna, Robert Emilio
dc.contributor.authorAbarca Oyarce, Romina
dc.date.accessioned2025-06-19T19:35:48Z
dc.date.available2025-06-19T19:35:48Z
dc.date.issued2025
dc.description.abstractThe increasing demand for reliable food preservation strategies has driven the development of active biopolymer-based films as alternatives to conventional packaging. This study evaluates Nisin/Na-EDTA-enriched alginate and gelatin films for preserving Dosidicus gigas (jumbo squid) during refrigerated storage. Films were formulated using alginate, gelatin 220/280 Bloom, and glycerol, and characterized in terms of their mechanical, optical, and biodegradation properties. Their effectiveness for the preservation of squid fillets was tested, focusing on weight loss and color stability during refrigerated storage. The incorporation of Nisin/Na-EDTA significantly modified the film’s properties: elongation at break increased from 4.95% (alginate control) to 65.13% (gelatin 280 active), while tensile strength decreased from 8.86 MPa to 0.798 MPa (alginate). Transparency was reduced by up to 2.5 times in active agent-incorporated alginate films. All films degraded within 14 days under soil exposure, with polysaccharide-based films degrading faster. In refrigerated storage, squid fillets coated with gelatin–alginate films containing Nisin showed reduced weight loss (24.05%) compared with uncoated controls (66.36%), particularly in skin-on samples. Color parameters and whiteness index were better preserved with gelatin-based coatings. These results demonstrate the potential of gelatin–alginate films with Nisin/Na-EDTA as biodegradable, active packaging to extend the shelf life of high-protein seafood.
dc.fechaingreso.objetodigital2025-06-19
dc.format.extent18 páginas
dc.fuente.origenORCID
dc.identifier.doi10.3390/foods14122100
dc.identifier.urihttps://doi.org/10.3390/foods14122100
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104711
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Escobar Aguirre, Sebastián Gonzalo; 0000-0001-8826-2096; 1092624
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Mora Luna, Robert Emilio; S/I; 1300339
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Abarca Oyarce, Romina; 0000-0001-5187-8874; 1165364
dc.issue.numero12
dc.language.isoen
dc.lugar.publicacionBasel, Switzerland
dc.nota.accesocontenido completo
dc.publisherMDPI
dc.revistaFoods
dc.rightsacceso abierto
dc.rights.licenseAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectActive coating
dc.subjectDosidicus gigas preservation
dc.subjectBiopolymer degradation
dc.subjectWeight loss control
dc.subject.ddc600
dc.subject.deweyTecnologíaes_ES
dc.subject.ods02 Zero hunger
dc.subject.odspa02 Hambre cero
dc.titleFunctional Biopolymer Coatings with Nisin/Na-EDTA as an Active Agent: Enhancing Seafood Preservation
dc.typeartículo
dc.volumen14
sipa.codpersvinculados1092624
sipa.codpersvinculados1300339
sipa.codpersvinculados1165364
sipa.trazabilidadORCID;2025-06-16
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