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Effect of cold plasma treatment on the properties of agar-based films enriched with pineapple waste
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Introduction: The use of food processing by-products in developing bioplastics and organic films represents a promising strategy for reducing waste and creating value-added products. Pineapple rind, for instance, is rich in fibers and bioactive compounds, making it an ideal candidate for incorporation into biopolymer films. Films' functional properties can be modified through cold plasma technology. Cold plasma generates reactive species and high-energy particles that can modify the surface chemistry of the films and their characteristics. Objectives: To valorize pineapple by-products while enhancing the films' functional properties through cold plasma treatment. To characterize the films' physical, chemical, and mechanical properties through various tests including color, thickness, water activity, moisture content, water solubility, water vapor permeability, tensile strength, Young’s modulus, and Fourier Transform Infrared Spectroscopy (FTIR) analysis for comprehensive comparison. Main conclusions: The incorporation of pineapple rind enhanced the films' water-barrier properties and elasticity. Plasma-induced surface modification of agar-based films resulted in improved biodegradability while maintaining mechanical performance. These findings highlight the potential of plasma technology to optimize and customize biodegradable packaging solutions, as well as to add value to fruit residues.
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Contexto Educativo
Citação
Sánchez, O., Silva, C. L. M., & Brandão, T. R. S. (2025). Effect of cold plasma treatment on the properties of agar-based films enriched with pineapple waste. 1-1. Poster session presented at 39th EFFoST International Conference 2025, Porto, Portugal.
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Licença CC
Sem licença CC