Barrier biopaper multilayers obtained by impregnation of electrospun poly (3-hydroxybutyrate-co-3-hydroxyvalerate) with protein and polysaccharide hydrocolloids
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Other documents of the author: Melendez-Rodriguez, Beatriz; M’Bengue, Marie-Stella; Torres-Giner, Sergio; Cabedo, Luis; Prieto, Cristina; LAGARON, Jose
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comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
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Title
Barrier biopaper multilayers obtained by impregnation of electrospun poly (3-hydroxybutyrate-co-3-hydroxyvalerate) with protein and polysaccharide hydrocolloidsAuthor (s)
Date
2021Publisher
ElsevierISSN
2666-8939Bibliographic citation
MELENDEZ-RODRIGUEZ, Beatriz, et al. Barrier biopaper multilayers obtained by impregnation of electrospun poly (3-hydroxybutyrate-co-3-hydroxyvalerate) with protein and polysaccharide hydrocolloids. Carbohydrate Polymer Technologies and Applications, 2021, 2: 100150.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
Multilayer biopapers composed of two electrospun layers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
(PHBV) were impregnated, at the inner side of one of the layers, with cellulose nanocrystals (CNCs) and their
... [+]
Multilayer biopapers composed of two electrospun layers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
(PHBV) were impregnated, at the inner side of one of the layers, with cellulose nanocrystals (CNCs) and their
composites with hydrocolloids, to develop high-barrier fully biobased structures. The study aimed for the first
time at comparing the impregnation of electrospun fibers with several biopolymer solutions. Thus, neat CNCs,
and CNCs mixed as a minor fraction, that is, 2 wt%, with gelatin (GE), agar (AG), xanthan gum (XG), and gum
arabic (GA) were assessed in their potential to improve the barrier properties of PHBV. Glycerol plasticizer was
added to the composite formulations. The impregnated electrospun multilayer mats were subsequently annealed,
below the PHBV melting point, to yield continuous films by an interfiber coalescence process, so-called biopapers, and thereafter characterized to evaluate their potential for high barrier food packaging applications. The
morphological characterization revealed good interlayer adhesion, more noticeably for those containing CNCs
and their nanocomposites with AG and XG. From their mechanical response, it was inferred that the material
behavior was governed mainly by the rigidity of the PHBV substrates, and this could not be significantly
improved by impregnation with any of the various hydrocolloids. Whereas the water vapor barrier was not seen
to improve in any of the samples, the barrier to the organic vapor limonene, used as a standard for aroma barrier,
was however improved in the samples impregnated with AG and XG composites. Interestingly, the oxygen barrier
properties were significantly improved but only by impregnation with pure CNCs. This study reports for the first
time a scalable impregnation technology approach to produce fully biobased barrier multilayers. [-]
Is part of
Carbohydrate Polymer Technologies and Applications 2 (2021) 100150Funder Name
the Spanish Ministry of Science and Innovation (MICI) | European Union
Project code
RTI2018-097249-B-C21 | info:eu-repo/grantAgreement/EC/H2020/ 836884
Project title or grant
USABLE PAKAGING
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info:eu-repo/semantics/openAccess
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