Active packaging material based on buriti oil- Mauritia flexuosaL.f. (Arecaceae) incorporated into chitosan films
| Autor: | Patricia Santos Lopes, Mariangela de Fátima Silva, Classius Ferreira da Silva, Cristiana Maria Pedroso Yoshida |
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| Rok vydání: | 2015 |
| Předmět: |
Thermogravimetric analysis
Materials science Polymers and Plastics Active packaging Plasticizer 04 agricultural and veterinary sciences General Chemistry Biodegradation 040401 food science Surfaces Coatings and Films Food packaging Chitosan chemistry.chemical_compound 0404 agricultural biotechnology chemistry Chemical engineering Ultimate tensile strength Materials Chemistry Thermal stability Composite material |
| Zdroj: | Journal of Applied Polymer Science. 133 |
| ISSN: | 0021-8995 |
| DOI: | 10.1002/app.43210 |
| Popis: | Active and biodegradable materials have great potential in food packaging applications, improving the safety and quality of products. The objective of this study was to develop a new material based on buriti oil incorporated into a chitosan film. Different concentrations of buriti oil in dried films (2.1 g/m2, 10.4 g/m2, 20.8 g/m2, and 31.3 g/m2) were added into a chitosan matrix (41.7 g/m2). The chitosan/buriti oil films were characterized by water-vapor barrier properties, total water-soluble matter (TSM), tensile properties, thermogravimetric analysis, microstructure, microbial permeation properties, and biodegradation estimation. The higher oil concentration improved the water-vapor barrier and the buriti oil acted largely as a plasticizer and increased the elongation at break, and decreased the tensile strength (TS) of chitosan films. The total water-soluble matter of chitosan films decreased in function of the buriti oil concentration, but the biodegradation and thermal stability increased. The chitosan films presented a microbial barrier against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43210. |
| Databáze: | OpenAIRE |
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