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Master's Dissertation
DOI
https://doi.org/10.11606/D.82.2010.tde-20072012-090651
Document
Author
Full name
Juliano Bottura Picchi
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2010
Supervisor
Committee
Gaspar, Ana Maria Minarelli (President)
Capote, Ticiana Sidorenko de Oliveira
Messaddeq, Younes
Title in Portuguese
Preparo e caracterização físico-química e biológica de um biocompósito à base de celulose associada à própolis
Keywords in Portuguese
Celulose
Compósitos
Própolis
Abstract in Portuguese
O desenvolvimento de novos materiais com fonte renovável, baixo custo, melhores propriedades físico-mecânicas e biodegradáveis tem se tornado o principal objetivo de muitas empresas e grupos de pesquisa. O objetivo deste trabalho foi preparar e caracterizar física, química e biologicamente um biocompósito à base de membrana de celulose com própolis. Foram preparadas membranas de celulose com própolis nas concentrações de 1,2%, 2,4% e 3,6%, secas e úmidas, realizados testes de caracterização através de Espectroscopia Vibracional na Região Infra-Vermelho, Difratometria de Raios-X, Microscopia Eletrônica de Varredura, Análise Térmica [Calorimetria Exploratória Diferencial e Termogravimetria] e análise microbiológica para S. aureus. A presença de concentrações diferentes de própolis nas membranas foi identificada nos diversos métodos utilizados e através do ensaio antimicrobiano, a concentração mínima de 0,34% de própolis foi ativo à S. aureus. Portanto, os resultados obtidos são promissores para trabalhos futuros in vivo e possíveis aplicações médicas.
Title in English
Preparation and physicochemical and biological characterization of a based cellulose biocomposite associated with propolis
Keywords in English
Cellulose
Composites
Propolis
Abstract in English
The development of new materials with renewable, low cost, better physical and mechanical properties and biodegradable has become the main goal of many companies and research groups. The aim of this work was prepare and characterize physical, chemical and biologically biocomposites based at a cellulose membrane with propolis. Cellulose membranes were prepared with propolis at concentrations of 1.2%, 2.4% and 3.6%, wet and dry tests performed characterization using vibrational spectroscopy Infra-Red, X-ray Diffraction, Microscopy Scanning Electron, thermal analysis [differential scanning calorimetry and thermogravimetric] and microbiological analysis for S. aureus. The presence of different concentrations of propolis in the membranes was identified in various methods used by testing and antimicrobial, the minimum concentration of 0.34% propolis was active at St. aureus. Therefore, the results are promising for future studies in vivo and potential medical applications.
 
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Publishing Date
2012-07-23
 
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