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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Ozonation of cassava starch to produce biodegradable films

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Autor(es):
La Fuente, Carla I. A. [1] ; de Souza, Andressa Tamyris [2] ; Tadini, Carmen C. [3, 2, 4] ; Duarte Augusto, Pedro Esteves [3, 1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Luiz Queiroz Coll Agr ESALQ, Dept Agrifood Ind Food & Nutr LAN, Piracicaba, SP - Brazil
[2] Univ Sao Paulo, Escola Politecn, Dept Chem Engn, Main Campus, BR-05508010 Sao Paulo, SP - Brazil
[3] Univ Sao Paulo, Food & Nutr Res Ctr NAPAN, Sao Paulo, SP - Brazil
[4] Univ Sao Paulo, Food Res Ctr, FoRC NAPAN, Sao Paulo, SP - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: International Journal of Biological Macromolecules; v. 141, p. 713-720, DEC 1 2019.
Citações Web of Science: 1
Resumo

In this study, biodegradable films were produced from cassava starch modified by ozone at different levels. The films were produced by casting technique using native and ozonated cassava starch, glycerol as the plasticizer, and water as the solvent. Films were characterized in term of their mechanical, barrier and functional properties, morphology, crystallinity, colour, and opacity. The morphology of the ozonated films was more homogeneous in comparison to the films produced with the non-modified starch and enhanced properties were achieved. Films produced with ozonated cassava starch presented higher tensile strength, Young's modulus and lower elongation. The water vapour permeation and the oxygen permeation were increased by increasing the ozonation time. Moreover, ozone processing resulted in films with a more hydrophilic surface and lower solubility after 24 h. Possible explanations and applications were discussed. In conclusion, the ozone processing showed to be a good alternative for starch based packaging production. (C) 2019 Elsevier B.V. All tights reserved. (AU)

Processo FAPESP: 18/24291-8 - Filmes biodegradáveis elaborados a partir de amido de mandioca modificado por ozônio reforçados com nano-celulose
Beneficiário:Andressa Tamyris de Souza
Linha de fomento: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 17/05307-8 - Modificação de amido de mandioca por oxidação com ozônio para a elaboração de filmes biodegradáveis
Beneficiário:Carla Ivonne La Fuente Arias
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 16/18052-5 - +Pro²FOOD: tecnologias emergentes para melhoria de processos e propriedades de alimentos
Beneficiário:Pedro Esteves Duarte Augusto
Linha de fomento: Auxílio à Pesquisa - Regular