Development of Electrospun Poly(3-hydroxybutyrate-co-3- hydroxyvalerate) Monolayers Containing Eugenol and Their Application in Multilayer Antimicrobial Food Packaging
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Development of Electrospun Poly(3-hydroxybutyrate-co-3- hydroxyvalerate) Monolayers Containing Eugenol and Their Application in Multilayer Antimicrobial Food PackagingData de publicació
2020-09-03Editor
Frontiers MediaCita bibliogràfica
FIGUEROA-LOPEZ, Kelly J., et al. Development of electrospun poly (3-hydroxybutyrate-co-3-hydroxyvalerate) monolayers containing eugenol and their application in multilayer antimicrobial food packaging. Frontiers in Nutrition, 2020, vol. 7.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.frontiersin.org/articles/10.3389/fnut.2020.00140/fullVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
In this research, different contents of eugenol in the 2.5–25 wt.% range were first
incorporated into ultrathin fibers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)
by electrospinning and then subjected to ... [+]
In this research, different contents of eugenol in the 2.5–25 wt.% range were first
incorporated into ultrathin fibers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)
by electrospinning and then subjected to annealing to obtain antimicrobial monolayers.
The most optimal concentration of eugenol in the PHBV monolayer was 15 wt.% since it
showed high electrospinnability and thermal stability and also yielded the highest bacterial
reduction against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). This
eugenol-containing monolayer was then selected to be applied as an interlayer between
a structural layer made of a cast-extruded poly(3-hydroxybutyrate) (PHB) sheet and a
commercial PHBV film as the food contact layer. The whole system was, thereafter,
annealed at 160◦C for 10 s to develop a novel multilayer active packaging material.
The resultant multilayer showed high hydrophobicity, strong adhesion and mechanical
resistance, and improved barrier properties against water vapor and limonene vapors.
The antimicrobial activity of the multilayer structure was also evaluated in both open and
closed systems for up to 15 days, showing significant reductions (R ≥ 1 and < 3) for
the two strains of food-borne bacteria. Higher inhibition values were particularly attained
against S. aureus due to the higher activity of eugenol against the cell membrane of
Grampositive (G+) bacteria. Themultilayer also provided the highest antimicrobial activity
for the closed system, which better resembles the actual packaging and it was related
to the headspace accumulation of the volatile compounds. Hence, the here-developed
multilayer fully based on polyhydroxyalkanoates (PHAs) shows a great deal of potential
for antimicrobial packaging applications using biodegradable materials to increase both
quality and safety of food products. [-]
Publicat a
Frontiers in Nutrition, 2020, v. 7Proyecto de investigación
1) Santiago Grisolía (Ref. 0001426013N810001A201) research contract of the Valencian Government (GVA); 2) Juan de la Cierva– Incorporación contract (IJCI-2016-29675) from MICI.Drets d'accés
info:eu-repo/semantics/openAccess
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