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dc.contributor.author
Gutiérrez Carmona, Tomy José
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dc.date.available
2019-10-12T11:53:45Z
dc.date.issued
2018-06
dc.identifier.citation
Gutiérrez Carmona, Tomy José; Active and intelligent films made from starchy sources/blackberry pulp; Springer/Plenum Publishers; Journal of Polymers and the Environment; 26; 6; 6-2018; 2374-2391
dc.identifier.issn
1566-2543
dc.identifier.uri
http://hdl.handle.net/11336/85856
dc.description.abstract
Functional, active and intelligent films were prepared from biopolymeric matrices (plantain starch and pre-gelatinized plantain flour) with and without the addition of a natural filler (blackberry pulp) using the casting methodology. A thorough examination of the physicochemical, antioxidant and antimicrobial properties of the both the matrices used and the developed films was then carried out. The films developed from matrices incorporating the blackberry pulp were more amorphous, thicker, less sensitive to moisture, and with higher melting temperatures than the films made without this natural filler. The degree of substitution, average molecular weight and attenuated total reflectance Fourier transform infrared spectroscopy of the films made with blackberry pulp suggest that the starch chains were cross-linked. This is probably because the citric acid contained in the pulp functions as a cross-linking agent. Films with added blackberry pulp responded to changes in pH, i.e. were pH-sensitive, and also showed antimicrobial activity especially against Escherichia coli. In general, the addition of blackberry pulp improved the physicochemical and mechanical properties of the films developed due to cross-linking, as well as increasing their antioxidant activity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer/Plenum Publishers
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Crosslinking
dc.subject
Films
dc.subject
Functional Polymers
dc.subject
Microstructure
dc.subject.classification
Recubrimientos y Películas
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Active and intelligent films made from starchy sources/blackberry pulp
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-08-08T19:31:36Z
dc.journal.volume
26
dc.journal.number
6
dc.journal.pagination
2374-2391
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Gutiérrez Carmona, Tomy José. Universidad Central de Venezuela. Facultad de Ciencias; Venezuela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.journal.title
Journal of Polymers and the Environment
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s10924-017-1134-y
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10924-017-1134-y
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