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Sorbitol-plasticized jackfruit starch-based films: investigation of the effect of the starch and plasticizer concentration on the film properties

2024Journal article Restricted access
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dc.contributor.authorSantana, Renata F.
dc.contributor.authorLima, Clara Mariana G.
dc.contributor.authorAlves, Annie N.
dc.contributor.authorManiglia, Bianca C.
dc.contributor.authordos Anjos, Laíza
dc.contributor.authorPires, Ana Clarissa S.
dc.contributor.authorSantos, Leandro Soares
dc.contributor.authorRodrigues, Luciano B.
dc.contributor.authorFontan, Rafael C. I.
dc.contributor.authorGonçalves, Jaqueline Teixeira T.
dc.contributor.authorGuiné, Raquel
dc.contributor.authorCoutinho, Henrique Douglas Melo
dc.contributor.authorBonomo, Renata Cristina F.
dc.date.accessioned2024-09-09T09:55:51Z
dc.date.available2024-09-09T09:55:51Z
dc.date.issued2024
dc.description.abstractJackfruit seeds have been explored as one interesting alternative starch source to be used in the production of sustainable bioplastics. In this context, this work aimed to investigate the effect of sorbitol concentration, one alternative plasticizer to glycerol, and the starch properties of the films. A complete factorial experimental study was done based on five different concentrations of starch (2, 3, 4, 5, and 6% w/w) and sorbitol (40, 50, 60, 70, 80 g per 100 g of starch). The films were produced by cast- ing technique and were characterized about thickness, optical properties, moisture resistance, mechanical properties, and morphology. The optical properties revealed opaque films, with opacity values ranging from 16.04 to 21.26%. Regarding mois- ture resistance, the less hydrophilic films showed lower plasticizer content. The water solubility varied from 25.48 to 38.93%; the water vapor permeability ranged from 9.99 to 11.82 × 10 −9 (g/m s Pa) and the free energy of hydrophobic interac- tions varied from − 28.16 to 40.13 mJ  m −1 . Concerning the mechanical properties, the tensile strength of the films ranged from 3.55 to 9.25 MPa, and increasing the sorbitol concentration decreased the tensile strength and increased the elongation at break. The morphology and structure analysis showed that starch granules were not fully gelatinized, with microbubbles and grooves in the film matrix. This study showed the great potential of jackfruit seed starch and sorbitol in the manufacture of biodegradable films as alternative sustainable packaging.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSantana R, Lima CMG, Alves NA, Maniglia BC, Anjos L, Pires ACS, Santos LS, Rodrigues LB, Fontan RCI, Gosnçalves JTT, Guiné RPF, Coutinho HDM, Bonomo RCF (2024) Sorbitol‑plasticized jackfruit starch‑based films: investigation of the effect of the starch and plasticizer concentration on the film properties. Polymer Bulletin, 81(14):13089-13111pt_PT
dc.identifier.doi10.1007/s00289-024-05316-8pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.19/8497
dc.language.isoengpt_PT
dc.subjectSustainabilitypt_PT
dc.subjectPolysaccharidespt_PT
dc.subjectPlasticizerpt_PT
dc.subjectPolymerpt_PT
dc.subjectBioplasticspt_PT
dc.titleSorbitol-plasticized jackfruit starch-based films: investigation of the effect of the starch and plasticizer concentration on the film propertiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage13111pt_PT
oaire.citation.issue14pt_PT
oaire.citation.startPage13089pt_PT
oaire.citation.titlePolymer Bulletinpt_PT
oaire.citation.volume81pt_PT
person.familyNamede Pinho Ferreira Guiné
person.givenNameRaquel
person.identifierhttps://scholar.google.pt/citations?user=abFDovIAAAAJ&hl=pt-PT
person.identifier.ciencia-id8B13-5492-0F23
person.identifier.orcid0000-0003-0595-6805
person.identifier.scopus-author-id6603138390
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication59580952-77cc-4e4e-ae90-527a8b994f9f
relation.isAuthorOfPublication.latestForDiscovery59580952-77cc-4e4e-ae90-527a8b994f9f

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