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Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol.

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Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol.

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dc.contributor.author Requena-Peris, Raquel es_ES
dc.contributor.author Vargas, Maria es_ES
dc.contributor.author Chiralt, A. es_ES
dc.date.accessioned 2019-01-20T21:04:31Z
dc.date.available 2019-01-20T21:04:31Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0268-005X es_ES
dc.identifier.uri http://hdl.handle.net/10251/115879
dc.description.abstract [EN] Bilayer films using polyester blends (P) and starch (S) were obtained and characterized, incorporating carvacrol as active compound. Carvacrol was incorporated by spraying it between melt blended and compression moulded sheets or through its incorporation into the chloroform P solution used to obtain P cast films. Different PLA-PHBV ratios (75:25 and 65:35) were tested, with and without 15¿wt% of PEG1000, whereas the 75:25 ratio with PEG was only used for cast sheets, based on its better overall properties. Mono and bilayers were characterized as to their tensile and water vapour barrier properties and thermal behaviour. Release kinetics of carvacrol in different food simulants and in in vitro antibacterial activity against Listeria innocua and Escherichia coli were also analysed. Incorporating carvacrol by spraying it between the polyester and starch sheets was not effective at retaining the compound in the bilayers. However, the incorporation of carvacrol into cast P films, and the subsequent formation of bilayers with the S sheets, was highly effective at providing practically total carvacrol retention. These active bilayers exhibited highly improved tensile and water vapour barrier capacity with respect to the S monolayer (87% reduction in WVP, 840% increase in elastic modulus) and inhibited the growth of L. innocua and E. coli from both P or S contact sides of bilayers, depending on the internal diffusion of carvacrol through the bilayer and its adequate release of the compound into the culture medium. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation AEI/AGL2016-76699-R es_ES
dc.relation.ispartof Food Hydrocolloids es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Starch es_ES
dc.subject Polylactic acid es_ES
dc.subject Polyhydroxybutyrate-co-hydroxyvalerate es_ES
dc.subject Carvacrol es_ES
dc.subject Packaging properties es_ES
dc.subject Antibacterial properties es_ES
dc.subject.classification TECNOLOGIA DE ALIMENTOS es_ES
dc.title Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol. es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.foodhyd.2018.04.045 es_ES
dc.rights.accessRights Embargado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Tecnología de Alimentos - Departament de Tecnologia d'Aliments es_ES
dc.description.bibliographicCitation Requena-Peris, R.; Vargas, M.; Chiralt, A. (2018). Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol. Food Hydrocolloids. 83:118-133. doi:10.1016/j.foodhyd.2018.04.045 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.foodhyd.2018.04.045 es_ES
dc.description.upvformatpinicio 118 es_ES
dc.description.upvformatpfin 133 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 83 es_ES
dc.relation.pasarela 364175 es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES


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