Keywords
agro-industrial waste
biodegradability
thermoforming
sustainable packaging
How to Cite
Abstract
The objective of this research was to optimize the formulation of biodegradable trays made from residual potato starch (Solanum tuberosum) and passion fruit residue flour (Passiflora edulis) using thermoforming. The study, with a hypothetical-deductive approach, basic design, cross-sectional scope, and explanatory level, applied a mixture design methodology with 15 experimental runs. The sample consisted of 5 kg of potato starch and 5 kg of passion fruit flour. Statistical analysis was performed with Design Expert 13 using ANOVA and numerical optimization, while graphical representation was carried out with Statistica 10. The results indicated an optimal formulation composed of 45.1% starch, 5.3% passion fruit flour, and 49.7% water, achieving high hardness, low fracturability, and adequate physical properties. Quadratic and linear models showed high reliability (R² > 0.90). It is concluded that the combination of residual potato starch and passion fruit flour allows the production of biodegradable trays with satisfactory mechanical and functional properties, representing a viable and sustainable alternative to conventional plastic packaging.
References
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