Abstract
In this study, biodegradable active films were prepared from potato starch and polyvinyl alcohol at different proportions, mixed with acetone extract of Hibiscus sabdariffa L. (HS) and using glycerol as a plasticizer. Functional properties, antimicrobial, and antioxidant capacity were evaluated. Potato starch films with a proportion of polyvinyl alcohol up to 50% and HS extract had significant antioxidant capacity and antibacterial effect against most of the analyzed strains. Adding polyvinyl alcohol (PVOH) and HS extract improved the mechanical performance and reduced water vapor permeability of the materials. The active biobased films with HS extract presented good physicochemical, antimicrobial, and antioxidant properties. These materials are considered as suitable for food packaging, and the active compounds in the roselle extract are a natural antibacterial option for the food area. The materials based entirely on biodegradable products are an excellent alternative when develo** and marketing biobased materials, minimizing the environmental impact of food packaging.
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The raw/processed data required to reproduce these findings cannot be shared at this time due to technical or time limitations.
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Acknowledgements
Special thanks to Fernando Perez Ortega, a master’s student at CIIDIR Oaxaca, for his support in thermomechanical characterization.
Funding
The study was supported by the National Council for Humanities, Science and Technology (CONAHCyT) for financial support to the project number A1-S-8288 ‘‘Antimicrobials from the Jamaican flower calyces alone and in combination with antibiotics: determination of the mechanisms of action on resistant and nonresistant pathogenic bacteria to antibiotics, the antimicrobial effect in vivo and adverse reactions in animals’’, and Centro de Investigación en Química Aplicada (CIQA) under research project 6710 (internal call 2022).
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F.A.H.-H. Investigation, Formal analysis, C.A.G.-A. Conceptualization, J.C.-R. Investigation, E.A.V.-L. Investigation, Methodology, M.C.G. Methodology, G.V. Investigation, E.J.J.-R. Investigation, R.Y.A.-L. Conceptualization, Visualization. All authors reviewed the manuscript.
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Hernández-Hernández, F.A., Gómez-Aldapa, C.A., Castro-Rosas, J. et al. Hibiscus Sabdariffa L. Extract as a Natural Additive in Food Packaging Biodegradable Films to Improve Antioxidant, Antimicrobial, and Physicochemical Properties. Plant Foods Hum Nutr 79, 285–291 (2024). https://doi.org/10.1007/s11130-024-01189-4
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DOI: https://doi.org/10.1007/s11130-024-01189-4