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Proceeding Paper

Optical and pH-Responsive Nanocomposite Film for Food Packaging Application †

by
Nedal Abu-Thabit
*,
Yunusa Umar
,
Zakariya Sadique
,
Elaref Ratemi
,
Ayman Ahmad
,
Abdul Kalam Azad
,
Sami Al-Anazi
and
Ismail Awan
Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City 31961, Saudi Arabia
*
Author to whom correspondence should be addressed.
†
Presented at the 6th International Electronic Conference on Sensors and Applications, 15–30 November 2019; Available online: https://ecsa-6.sciforum.net/.
Proceedings 2020, 42(1), 28; https://doi.org/10.3390/ecsa-6-06569
Published: 14 November 2019
(This article belongs to the Proceedings of The 6th International Electronic Conference on Sensors and Applications)
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Abstract

In this study, a biocompatible and non-toxic pH-responsive composite film was prepared for food packaging application. The films are composed from polyvinyl alcohol as the main polymeric matrix, nanoclay as a reinforcing component, and red cabbage extract as a non-toxic indicator. The prepared films showed lower water uptake values when the amount of nanoclay was increased up to 25%. It was observed that the films become brittle at high loading of nanoclay (40%). The prepared films exhibited color change in alkaline and acidic medium due to the presence of red cabbage extract, which turned pinkish in acidic medium and greenish in an alkaline environment. The prepared films were characterized by FTIR and visible spectroscopy. The maximum absorption in acidic medium was (λmax = 527 nm), while a red-shift occurred in the alkaline medium (λmax = 614 nm). Future work will focus on the crosslinking of the prepared films to improve their mechanical properties.
Keywords: nanomposite; pH sensor; optical sensor; colorimetric sensor; food packaging; film; smart film; responsive film; polyvinyl alcohol; red cabbage; nanoclay nanomposite; pH sensor; optical sensor; colorimetric sensor; food packaging; film; smart film; responsive film; polyvinyl alcohol; red cabbage; nanoclay

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MDPI and ACS Style

Abu-Thabit, N.; Umar, Y.; Sadique, Z.; Ratemi, E.; Ahmad, A.; Azad, A.K.; Al-Anazi, S.; Awan, I. Optical and pH-Responsive Nanocomposite Film for Food Packaging Application. Proceedings 2020, 42, 28. https://doi.org/10.3390/ecsa-6-06569

AMA Style

Abu-Thabit N, Umar Y, Sadique Z, Ratemi E, Ahmad A, Azad AK, Al-Anazi S, Awan I. Optical and pH-Responsive Nanocomposite Film for Food Packaging Application. Proceedings. 2020; 42(1):28. https://doi.org/10.3390/ecsa-6-06569

Chicago/Turabian Style

Abu-Thabit, Nedal, Yunusa Umar, Zakariya Sadique, Elaref Ratemi, Ayman Ahmad, Abdul Kalam Azad, Sami Al-Anazi, and Ismail Awan. 2020. "Optical and pH-Responsive Nanocomposite Film for Food Packaging Application" Proceedings 42, no. 1: 28. https://doi.org/10.3390/ecsa-6-06569

APA Style

Abu-Thabit, N., Umar, Y., Sadique, Z., Ratemi, E., Ahmad, A., Azad, A. K., Al-Anazi, S., & Awan, I. (2020). Optical and pH-Responsive Nanocomposite Film for Food Packaging Application. Proceedings, 42(1), 28. https://doi.org/10.3390/ecsa-6-06569

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