Particle Size Distribution Effect on Cassava Starch and Cassava Bagasse Biocomposites

Regarding the growing interest in the development of biodegradable films from renewable sources, this work is focused on the utilization of cassava roots bagasse as a natural filler of cassava starch films. Homogenous films could be obtained by casting molding from gelatinized cassava starch suspens...

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Detalles Bibliográficos
Autores principales: Versino, Florencia, García, María Alejandra
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Exactas
Química
Biocomposites
Renewable materials
Biodegradable
Fibrous fillers
Particle size
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123570
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123570
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Biocomposites
Renewable materials
Biodegradable
Fibrous fillers
Particle size
spellingShingle Ciencias Exactas
Química
Biocomposites
Renewable materials
Biodegradable
Fibrous fillers
Particle size
Versino, Florencia
García, María Alejandra
Particle Size Distribution Effect on Cassava Starch and Cassava Bagasse Biocomposites
topic_facet Ciencias Exactas
Química
Biocomposites
Renewable materials
Biodegradable
Fibrous fillers
Particle size
description Regarding the growing interest in the development of biodegradable films from renewable sources, this work is focused on the utilization of cassava roots bagasse as a natural filler of cassava starch films. Homogenous films could be obtained by casting molding from gelatinized cassava starch suspensions, plasticized with glycerol and containing 1.5% w/w bagasse. In order to study the particle size effect on films properties, three different fibrous residue fractions (particles sized between 500–250, 250–53, and particles <53 μm) were used and compared to films reinforced with bagasse particles sized under 500 μm. Chemical composition and particle size distribution of cassava bagasse helped to explain the starch films morphology and mechanical and barrier properties modifications. SEM micrographs evidenced that the filler was structurally incorporated in the matrix, reinforcing cassava–starch matrices regardless of bagasse particle size. The filler increased the UV-barrier capacity and opacity of the materials, though water vapor permeability increased with solids content and filler particle size. Moreover, the developed biocomposite materials can be heat-sealed, indicating their suitability for flexible packaging manufacture. Even though starch-based materials are essentially biodegradable, the biodegradation kinetics of the reinforced biocomposites was studied showing the slowest degradation process for materials with larger filler particles.
format Articulo
Articulo
author Versino, Florencia
García, María Alejandra
author_facet Versino, Florencia
García, María Alejandra
author_sort Versino, Florencia
title Particle Size Distribution Effect on Cassava Starch and Cassava Bagasse Biocomposites
title_short Particle Size Distribution Effect on Cassava Starch and Cassava Bagasse Biocomposites
title_full Particle Size Distribution Effect on Cassava Starch and Cassava Bagasse Biocomposites
title_fullStr Particle Size Distribution Effect on Cassava Starch and Cassava Bagasse Biocomposites
title_full_unstemmed Particle Size Distribution Effect on Cassava Starch and Cassava Bagasse Biocomposites
title_sort particle size distribution effect on cassava starch and cassava bagasse biocomposites
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/123570
work_keys_str_mv AT versinoflorencia particlesizedistributioneffectoncassavastarchandcassavabagassebiocomposites
AT garciamariaalejandra particlesizedistributioneffectoncassavastarchandcassavabagassebiocomposites
bdutipo_str Repositorios
_version_ 1764820449800224768

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