Volume 142, Issue 14 e56705
RESEARCH ARTICLE

Active Bio-Nanocomposite Films Based on PVA Filled With CNC and Bio-Active Extract From Onion Skin Waste

Mohamed Hamid Salim

Mohamed Hamid Salim

Materials Science, Energy, and Nano-Engineering (MSN) Department, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco

Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, UAE

Contribution: Conceptualization (lead), Formal analysis (lead), Methodology (lead), Writing - original draft (lead), Writing - review & editing (lead)

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Youness Abdellaoui

Youness Abdellaoui

Cinvestav Saltillo, Sustentabilidad de los Recursos Naturales y Energía, Laboratorio de Revaloración de Residuos, Ramos Arizpe, Mexico

CONAHCyT-Cinvestav Saltillo. Sustentabilidad de los Recursos Naturales y Energía. Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe, Ramos Arizpe, Mexico

Contribution: ​Investigation (equal), Validation (equal), Writing - original draft (equal), Writing - review & editing (lead)

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Mehdi Mennani

Corresponding Author

Mehdi Mennani

Materials Science, Energy, and Nano-Engineering (MSN) Department, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco

Correspondence:

Mehdi Mennani ([email protected])

Zineb Kassab ([email protected])

Contribution: ​Investigation (equal), Validation (equal), Visualization (equal), Writing - original draft (equal), Writing - review & editing (equal)

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Abdoulaye Soumare

Abdoulaye Soumare

Laboratory of Agroforestry and Ecology, Assane Seck University (UASZ-UFR ST), Ziguinchor, Senegal

Contribution: Formal analysis (equal), Visualization (equal), Writing - review & editing (supporting)

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Lourdes Díaz-Jimenéz

Lourdes Díaz-Jimenéz

Cinvestav Saltillo, Sustentabilidad de los Recursos Naturales y Energía, Laboratorio de Revaloración de Residuos, Ramos Arizpe, Mexico

Contribution: Conceptualization (equal), Validation (equal), Visualization (equal), Writing - review & editing (equal)

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Mounir El Achaby

Mounir El Achaby

Materials Science, Energy, and Nano-Engineering (MSN) Department, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco

Contribution: Conceptualization (equal), Resources (equal), Supervision (equal), Visualization (equal)

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Zineb Kassab

Corresponding Author

Zineb Kassab

Materials Science, Energy, and Nano-Engineering (MSN) Department, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco

Correspondence:

Mehdi Mennani ([email protected])

Zineb Kassab ([email protected])

Contribution: Conceptualization (lead), Methodology (lead), Project administration (lead), Supervision (lead), Validation (lead), Writing - review & editing (lead)

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First published: 10 January 2025
Citations: 2

Funding: This study was supported by Office Chérifien des Phosphates.

ABSTRACT

Amidst growing interest in sustainable packaging, this study delves into the preparation of polyvinyl alcohol (PVA)-based biofilms filled with cellulose nanocrystals (CNCs) sourced from red onion skin waste, coupled with bio-active red onion extract (OPE). These innovative bionanocomposite films hold promise for active food packaging applications. The investigation focuses on understanding the interplay between the added agents (OPE and CNC) and the macromolecular chains of PVA. Furthermore, the effects of various OPE concentrations on the physicochemical characteristics and antibacterial properties of CNC-filled PVA bio-nanocomposites were also examined. The integration of CNC and OPE noticeably enhanced the film's properties. Mechanical strength increased by 37%, thermal stability improved with a 92°C increase in decomposition temperature, and UV barrier properties were enhanced by 45%. Additionally, antibacterial activity against foodborne pathogens improved, with the highest inhibition rates reaching 89% against Staphylococcus fungi and 79% against Staphylococcus aureus . The findings demonstrated that the incorporation of bio-active OPE significantly enhanced the UV barrier, antibacterial properties, and biodegradability of PVA-CNC bio-nanocomposite films. These films present a promising approach for sustainable and active food packaging solutions, capable of extending shelf life while reducing environmental impact. Further research in real food systems is recommended to validate these results.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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