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In Association with
Thermal properties of biofilms obtained from epoxidized fatty esters Pseudoplatystoma corruscans, mesopotamicus Piaractus and Glycine
International Conference on Sustainable Bioplastics
Lucia Helena Innocentini Mei, Tairine Pimentel, Camila de Souza Andrade, Gustavo Graciano Fonseca and Farayde Matta Fakhouri
University of the Campinas, Brazil StateUniversity of the Mato Grosso do Sul, Brazil Federal University of the Mato Grosso do Sul, Brazil Federal University of the Grande Dourados, Brazil
Posters & Accepted Abstracts: J Bioremediat Biodegrad
Abstract
For the formation of a biofilm it is ideal that it is composed of at least a macromolecule such as starch (polysaccharide) and gelatin (protein). Biofilms obtained from these two types of polymers, indicate good mechanical properties and good barrier to gas vapour, O2 and CO2 present, little resistance to water vapour permeability, they are significantly soluble. An outlet for repairing such low permeability to water vapour is the inclusion of lipids to these polymeric bases. This study aimed to evaluate the thermal properties (DSC) films produced from lipophilic corn starch, gelatin (4:1) and ester fatty epoxidized (15% by weight of the starch) of two species of fish, Pseudoplatystoma corruscans (EPPI) and Piaractus mesopotamicus (EPPA), and plant species Glycine max (EPSO). The determination of the glass transition temperature (Tg) analyses were performed by differential scanning calorimetry, using a TA Instruments calorimeter (USA), Model TA 2010. The sample film pattern composed of starch and gelatin showed only lower Tg two of the samples, 99.29�?ºC except for sample EPPI which showed glass transition temperature 64.90�?ºC, as another animal species, EPPA indicated two Tg ranges, 123.72�?ºC and 136.19�?ºC and EPSO indicated only approximately 122.96�?°C, or these temperatures, biofilms exhibit a change in physical properties of the starting material, which passes from a rigid state to a viscous state.Biography
Lucia Helena Innocentini Mei did her Graduation, Master and PhD in Chemistry from the State University of Campinas. She is Titular Professor in Polymer Science - UNICAMP, with emphasis on polymers: Biodegradable, biomaterials, composites and blends. She participated in the group of experts Pásticos Environmentally Degradable organized by ICS (International Center for Science and High Technology Trieste/Italy) -UNIDO (United Nations Industrial Development Organization). Her most recent research focuses on nanofibers and nanocomposites, natural or biodegradable polymers. She is developing projects with companies and State research institutions, such as Petrobras and private. She is a Winner of Inventor 2010 Petrobras Award.
Email: fumei@feq.unicamp.br
