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Pectin-Polyvinylpyrrolidone Based Antimicrobial and Antioxidant Nanocomposite Film Impregnated with Titania Nanoparticles and Bael Shell Extract

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Abstract

The active pectin-polyvinylpyrrolidone nanocomposite film incorporated with titania nanoparticles and bael shell extract was fabricated via the casting solution method. Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) was utilized to analyze the nanocomposite films. The titanium nanoparticles were found to be uniformly dispersed throughout the matrix of the pectin-polyvinylpyrrolidone polymer, as shown by the SEM analysis. This resulted in forming a flexible nanocomposite film with a smooth surface. Films developed with a 5 or 20% addition of bael shell extract had less transparency than neat films. Bael shell extract (up to 20 w/w %) significantly improved the film’s tensile strength from 5.57 MPa of neat to 30.02 MPa for PPT/BSE20. Additionally, the pectin-polyvinylpyrrolidone/titania/bael shell extract nanocomposite films revealed excellent antioxidant activity comparable to gallic acid and significant antibacterial action against foodborne pathogenic bacteria, such as Escherichia coli and Listeria monocytogenes. The antibacterial and antioxidant properties of the pectin-polyvinylpyrrolidone nanocomposite film, along with its better ultraviolet protection and improved mechanical properties, show much promise for active food packaging.

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Funding

Author K.K. Gaikwad would like to sincerely thank the Science and Engineering Research Board (SERB), Government of India, for the financial support provided under the Start-Up Research Grant (SRG) (SRG/2021/001549).

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Ram Kumar Deshmukh: investigation, formal analysis, visualization, data curation, writing–original draft, and revision of the manuscript. Pardeep Kumar: investigation and formal analysis. Rohit Tanwar: original draft, editing, review, and formatting. Kirtiraj K. Gaikwad: conceptualization, methodology, resources, manuscript editing and review, revision of manuscript, supervision, project administration, and funding acquisition.

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Correspondence to Kirtiraj K. Gaikwad.

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Deshmukh, R.K., Kumar, P., Tanwar, R. et al. Pectin-Polyvinylpyrrolidone Based Antimicrobial and Antioxidant Nanocomposite Film Impregnated with Titania Nanoparticles and Bael Shell Extract. Food Bioprocess Technol 15, 2839–2853 (2022). https://doi.org/10.1007/s11947-022-02922-0

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  • DOI: https://doi.org/10.1007/s11947-022-02922-0

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