Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/45757
Title: Filmes de amido e carboximetilcelulose ativos pela adição de antimicrobianos à base de peptídeos
Other Titles: Starch and carboxymethylcellulose films active by the addition of peptide based antimicrobials
Authors: 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
Keywords: 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
Issue Date: 4-Dec-2020
Publisher: Universidade Federal de Lavras
Citation: 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.
Abstract: 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
Appears in Collections:Engenharia de Biomateriais – Doutorado (Teses)



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