Corn starch based films treated by dielectric barrier discharge plasma
| Autor: | Elenilson G. Alves Filho, Edy Sousa de Brito, Henriette M.C. Azeredo, Emilio de Castro Miguel, Fabiano A.N. Fernandes, Mayara Lima Goiana, Morsyleide de Freitas Rosa |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Plasma Gases Starch 02 engineering and technology Dielectric barrier discharge Polysaccharide Biochemistry 03 medical and health sciences chemistry.chemical_compound Structural Biology Tensile Strength Ultimate tensile strength Composite material Molecular Biology Plasma processing 030304 developmental biology chemistry.chemical_classification 0303 health sciences Aqueous solution Food Packaging Water General Medicine Plasma 021001 nanoscience & nanotechnology Solubility chemistry 0210 nano-technology Hydrophobic and Hydrophilic Interactions Corn starch |
| Zdroj: | International Journal of Biological Macromolecules. 183:2009-2016 |
| ISSN: | 0141-8130 |
| Popis: | Cold plasma is an innovative strategy to strengthen the polysaccharide-based films characteristics. This study evaluated the effects of dielectric barrier discharge (DBD) plasma on the hydrophilic character, water vapor permeability (WVP), and tensile properties of corn starch-based films. Starch films were exposed to plasma processing operating at an excitation frequency of 200 Hz for 10, 15, and 20 min. DBD plasma resulted in further enhanced tensile strength and stiffness, and lower hydrophilicity and water solubility; however, it did not present significant effects on the WVP of the resulting films within the ranges studied. Higher hydrophobicity, strength, and stiffness were verified after 20 min. The results presented in this work suggest that the DBD plasma has the potential to make starch-based films a more suitable packaging material. |
| Databáze: | OpenAIRE |
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