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dc.contributor.author
Gutiérrez Carmona, Tomy José  
dc.contributor.author
Valencia, Germán Ayala  
dc.date.available
2022-11-22T12:06:23Z  
dc.date.issued
2021-03  
dc.identifier.citation
Gutiérrez Carmona, Tomy José; Valencia, Germán Ayala; Reactive extrusion-processed native and phosphated starch-based food packaging films governed by the hierarchical structure; Elsevier Science; International Journal of Biological Macromolecules; 172; 3-2021; 439-451  
dc.identifier.issn
0141-8130  
dc.identifier.uri
http://hdl.handle.net/11336/178477  
dc.description.abstract
The aim of this research work was to investigate novel tools given by nanotechnology and green chemistry for improving the disadvantages typically associated to the starch-based films: water susceptibility and brittle mechanical behavior. With this in mind, four food packaging film systems were developed from corn starch or corn starch nanocrystals (SNCs), and modified by phosphating under reactive extrusion (REx) conditions using sodium tripolyphosphate (Na5P3O10 - TPP) as a crosslinker. The structural, physicochemical, thermal, rheological and mechanical properties, as well as studies associated with the management of carbohydrate polymer-based plastic wastes (biodegradability and compostability) were carried out in this study. The hierarchical structure and the modification of the starch were dependent on the amylose content and degree of substitution (DS), which in turn depended on the hydrogen (H)-bonding interactions. In both cases, a higher molecular ordering of the starch chains in parallel was decisive to obtain the self-assembled thermoplastic starches. Beyond the valuable results obtained and scientifically analyzed, unfortunately none of the manufactured materials achieved to improve their performance compared to the control film (thermoplastic starch - TPS). It was even thought that the phosphated starch-based films could fertilize lettuce (Lactuca sativa) seedlings during their biodegradation, and this was not achieved either. This possibly due to the low content of phosphorus or its poor bioavailability.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
BIODEGRADABILITY  
dc.subject
COMPOSTABILITY  
dc.subject
ECO-FRIENDLY MATERIALS  
dc.subject
FOOD NANOTECHNOLOGY  
dc.subject
GREEN CHEMISTRY  
dc.subject
SELF-ASSEMBLY  
dc.subject.classification
Recubrimientos y Películas  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Reactive extrusion-processed native and phosphated starch-based food packaging films governed by the hierarchical structure  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2022-09-20T18:49:14Z  
dc.journal.volume
172  
dc.journal.pagination
439-451  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Gutiérrez Carmona, Tomy José. 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.description.fil
Fil: Valencia, Germán Ayala. Universidade Federal de Santa Catarina; Brasil  
dc.journal.title
International Journal of Biological Macromolecules  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijbiomac.2021.01.048  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0141813021000714