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dc.contributor.author
González, Agustín
dc.contributor.author
Alvarez Igarzabal, Cecilia Ines
dc.date.available
2016-12-16T21:35:35Z
dc.date.issued
2013-12
dc.identifier.citation
González, Agustín; Alvarez Igarzabal, Cecilia Ines; Soy protein – Poly (lactic acid) bilayer films as biodegradable material for active food packaging; Elsevier; Food Hydrocolloids; 33; 2; 12-2013; 289-296
dc.identifier.issn
0268-005X
dc.identifier.uri
http://hdl.handle.net/11336/9667
dc.description.abstract
The preparation and characterization of biodegradable bilayer films from isolated soy protein (SPI) and poly (lactic acid) (PLA) were carried out in this work. The films showed high transparency and strong adhesion between layers without adding an extra component, or without chemically modifying the film surfaces. The application of the PLA layer largely increased the mechanical properties of the films with respect to those of pure SPI films. Furthermore, the hydrophobic characteristics of the PLA layer improved film performance under conditions in which water was involved, markedly decreasing the amount of total soluble matter, the swelling index and the water vapor permeability. The biodegradation under soil burial conditions was evaluated measuring weight loss as a function of time, showing a twostep degradation and a faster degradation rate for the protein component compared to those of PLA layer.<br />The films prepared were evaluated as active packaging by incorporation of an antifungal and an antibacterial agent (natamycin and thymol, respectively) to the SPI layer, showing a marked growth inhibition of mold, yeast and two strains of bacteria by in-vitro microbiological assays.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Soy Protein
dc.subject
Poly (Lactic Acid)
dc.subject
Bilayer Film
dc.subject
Active Packaging
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Soy protein – Poly (lactic acid) bilayer films as biodegradable material for active food packaging
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-12T14:16:23Z
dc.journal.volume
33
dc.journal.number
2
dc.journal.pagination
289-296
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: González, Agustín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
dc.description.fil
Fil: Alvarez Igarzabal, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
dc.journal.title
Food Hydrocolloids
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.foodhyd.2013.03.010
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0268005X13000933
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