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Título: | Filmes de amido e carboximetilcelulose ativos pela adição de antimicrobianos à base de peptídeos |
Título(s) alternativo(s): | Starch and carboxymethylcellulose films active by the addition of peptide based antimicrobials |
Autores: | Marconcini, José Manoel Oliveira, Juliano Elvis de Pastre, Adriana de Campos Mendes, Lourival Marin Carneiro, João de Deus Souza Pastre, Adriana de Campos Piccoli, Roberta Hilsdorf |
Palavras-chave: | Polímeros naturais Embalagens ativas Atividade antimicrobiana Filmes de amido - Propriedades mecânicas Filmes de amido - Hidrofobicidade Natural polymers Active packaging Antimicrobial activity Starch films - Mechanical properties Starch films - Hydrophobicity |
Data do documento: | 4-Dez-2020 |
Editor: | Universidade Federal de Lavras |
Citação: | TAVARES, K. M. Filmes de amido e carboximetilcelulose ativos pela adição de antimicrobianos à base de peptídeos. 2020. 158 p. Tese (Doutorado em Engenharia de Biomateriais) – Universidade Federal de Lavras, Lavras, 2020. |
Resumo: | Starch films have great potential to be used in packaging, despite being subjected to the action of water and microorganisms, which hinder this use. Thus, the addition of carboxymethylcellulose (CMC) and peptide BP100 aims to overcome these limitations, expanding the mechanical properties and shelf life of food, respectively. The objective of this work was to evaluate the mechanical, water vapor barrier and antimicrobial properties of starch films with active CMC by the addition of BP100. Preliminary evaluations of corn or cassava starch films showed that the addition of 50 wt. % CMC increased the mechanical properties and reduced the water vapor permeation of the films, regardless of the botanical origin of the starch. https://doi.org/10.1016/j.carbpol.2019.115055. Then, different concentrations of CMC were added in corn starch films and it was found that contents of up to 40 wt. % were responsible for the increase of mechanical and water vapor barrier properties of the films. https://doi.org/10.1016/j.carbpol.2020.116521. In a third moment, BP100 was added to the films of corn starch with 20 and 40 wt.% of CMC and it was verified that there was an increase in the mechanical and water vapor barrier properties, besides the appearance of antimicrobial properties to gram-negative and gram-positive bacteria. |
URI: | http://repositorio.ufla.br/jspui/handle/1/45757 |
Aparece nas coleções: | Engenharia de Biomateriais – Doutorado (Teses) |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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TESE_Filmes de amido e carboximetilcelulose ativos pela adição de antimicrobianos à base de peptídeos.pdf | 4,66 MB | Adobe PDF | Visualizar/Abrir |
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