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Article

Evaluation of Physical, Mechanical and Antibacterial Properties of Pinto Bean Starch-Polyvinyl Alcohol Biodegradable Films Reinforced with Cinnamon Essential Oil

1
Department of Food Science and Technology, Faculty of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin 3381774895, Iran
2
Department of Polymer Engineering, Faculty of Engineering, Southern Tehran Branch, Islamic Azad University, Tehran 1584743311, Iran
3
Department of Food Chemistry and Technology, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
*
Author to whom correspondence should be addressed.
Academic Editor: Agnieszka Tercjak
Polymers 2021, 13(16), 2778; https://doi.org/10.3390/polym13162778
Received: 27 July 2021 / Revised: 4 August 2021 / Accepted: 11 August 2021 / Published: 18 August 2021
(This article belongs to the Special Issue Biopolymers for Food Packaging Films and Coatings)
In the present study, various blended films from polyvinyl alcohol (PVA) and pinto bean starch (PBS) were prepared and the selected film was used to fabricate an antimicrobial packaging film. Different essential oils (EOs) were also exposed to minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) tests to find the most efficient EO against a range of microorganisms. From the primary studies, the PVA:PBS (80:20) and cinnamon essential oil (CEO) were chosen. Afterward, the blend composite film reinforced by 1, 2, and 3% CEO and several, physical, mechanical, structural, and antimicrobial attributes were scrutinized. The results showed a significant modification of the barrier and mechanical properties of the selected blended films as a result of CEO addition. Scanning electron micrographs confirmed the incorporation and distribution of CEO within the film matrix. The X-ray diffraction (XRD) patterns and Fourier transform infrared (FTIR) spectra indicated the interaction of CEO and the PVA-PBS composite. The antibacterial of the tested bacteria showed a significant increase by increasing the CEO concentration within the control film. CEO-loaded films were more effective in controlling Gram-positive bacteria compared to Gram-negative bacteria. It can be concluded that PVA-PBS-CEO films are promising candidates to produce biodegradable functional films for food and biomedical applications. View Full-Text
Keywords: pinto bean starch; polyvinyl alcohol; packaging film; essential oils; antimicrobial properties pinto bean starch; polyvinyl alcohol; packaging film; essential oils; antimicrobial properties
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MDPI and ACS Style

Khazaei, A.; Nateghi, L.; Zand, N.; Oromiehie, A.; Garavand, F. Evaluation of Physical, Mechanical and Antibacterial Properties of Pinto Bean Starch-Polyvinyl Alcohol Biodegradable Films Reinforced with Cinnamon Essential Oil. Polymers 2021, 13, 2778. https://doi.org/10.3390/polym13162778

AMA Style

Khazaei A, Nateghi L, Zand N, Oromiehie A, Garavand F. Evaluation of Physical, Mechanical and Antibacterial Properties of Pinto Bean Starch-Polyvinyl Alcohol Biodegradable Films Reinforced with Cinnamon Essential Oil. Polymers. 2021; 13(16):2778. https://doi.org/10.3390/polym13162778

Chicago/Turabian Style

Khazaei, Ali, Leila Nateghi, Nazanin Zand, Abdulrasoul Oromiehie, and Farhad Garavand. 2021. "Evaluation of Physical, Mechanical and Antibacterial Properties of Pinto Bean Starch-Polyvinyl Alcohol Biodegradable Films Reinforced with Cinnamon Essential Oil" Polymers 13, no. 16: 2778. https://doi.org/10.3390/polym13162778

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