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Poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] active bilayer filmsobtained by compression moulding and applying essential oils at the interface

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Poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] active bilayer filmsobtained by compression moulding and applying essential oils at the interface

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dc.contributor.author Requena-Peris, Raquel es_ES
dc.contributor.author Jiménez Marco, Alberto es_ES
dc.contributor.author Vargas, Maria es_ES
dc.contributor.author Chiralt, A. es_ES
dc.date.accessioned 2018-02-13T08:07:20Z
dc.date.available 2018-02-13T08:07:20Z
dc.date.issued 2016 es_ES
dc.identifier.uri http://hdl.handle.net/10251/97765
dc.description.abstract [EN] Four active components, oregano essential oil (OR) and its respective main compound carvacrol (CA) and clove essential oil (CLO) and its respective main compound eugenol (EU), were used separately to obtain, using compression moulding, poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] (PHBV) bilayer films with antimicrobial activity. The active compounds were sprayed (15% w/w, polymer to active compound ratio) at the interface between two layers of PHBV, which were joined using thermo-compression. Tensile, barrier and optical properties, as well as thermal behaviour, of the films were characterized after one week at 25 ∘C and 53% relative humidity. Likewise, the antimicrobial activity of the films was evaluated against Escherichia coli and Listeria innocua. Although the tensile properties of the films were not improved with respect to pure PHBV films by the addition of the active compounds, more transparent materials with better water vapour barrier capacity were obtained. Thermogravimetric analyses showed that CA and EU slightly decreased the polymer thermal stability, while OR and CLO led to more thermally resistant material. Miscibility of actives with the polymer was assessed through the promoted decrease in melting temperature and degree of crystallinity. PHBV films allowed the release of the active compounds in adequate amounts and at adequate rates into culture media to control themicrobial growth of the two tested bacteria. The films were significantly more effective against E. coli than against L. innocua. Both bacteria were more sensitive to OR and to its main compound, CA, due to the greater antimicrobial effectiveness of these components. es_ES
dc.description.sponsorship The authors thank the Ministerio de Economía y Competitividad – Government of Spain for financial support provided through AGL2013-42989-R Project. RR thanks the Ministerio de Educación, Cultura y Deporte – Government of Spain for an FPU Grant.
dc.language Inglés es_ES
dc.publisher John Wiley & Sons es_ES
dc.relation info:eu-repo/grantAgreement/MINECO//AGL2013-42989-R/ES/NUEVOS MATERIALES BIODEGRADABLES MULTICAPA PARA ENVASADO ACTIVO DE ALIMENTOS SENSIBLES AL DETERIORO MICROBIANO Y%2FO OXIDATIVO/ es_ES
dc.relation.ispartof Polymer International (Online) es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] (PHBV) es_ES
dc.subject Carvacrol es_ES
dc.subject Eugenol es_ES
dc.subject Oregano es_ES
dc.subject Clove es_ES
dc.subject Listeria innocua es_ES
dc.subject Escherichia coli es_ES
dc.subject Antimicrobial es_ES
dc.subject.classification TECNOLOGIA DE ALIMENTOS es_ES
dc.title Poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] active bilayer filmsobtained by compression moulding and applying essential oils at the interface es_ES
dc.type Artículo es_ES
dc.type Comunicación en congreso es_ES
dc.identifier.doi 10.1002/pi.5091 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Tecnología de Alimentos - Departament de Tecnologia d'Aliments es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Ingeniería de Alimentos para el Desarrollo - Institut Universitari d'Enginyeria d'Aliments per al Desenvolupament es_ES
dc.description.bibliographicCitation Requena-Peris, R.; Jiménez Marco, A.; Vargas, M.; Chiralt, A. (2016). Poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] active bilayer filmsobtained by compression moulding and applying essential oils at the interface. Polymer International (Online). 65(8):883-891. doi:10.1002/pi.5091 es_ES
dc.description.accrualMethod S es_ES
dc.relation.conferencename 5th International Conference on Biobased and Biodegradable Polymers (BIOPOL 2015) es_ES
dc.relation.conferencedate October 06-09, 2015 es_ES
dc.relation.conferenceplace Donostia-San Sebastián, Spain es_ES
dc.relation.publisherversion http://doi.org/10.1002/pi.5091 es_ES
dc.description.upvformatpinicio 883 es_ES
dc.description.upvformatpfin 891 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 65 es_ES
dc.description.issue 8 es_ES
dc.identifier.eissn 1097-0126 es_ES
dc.relation.pasarela S\315545 es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES


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