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Volume 14
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10.3390/coatings14101252
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Review

Thermochromic Polymers in Food Packaging: A Comprehensive Systematic Review and Patent Landscape Analysis

by
Colette Breheny
1,*,
Kieran Donlon
2,
Alan Harrington
3,
Declan Mary Colbert
1,
Gilberto S. N. Bezerra
1 and
Luke M. Geever
1
1
PRISM Research Institute, Technological University of the Shannon, University Road, N37 HD68 Athlone, Ireland
2
Independent Researcher, N37 E656 Athlone, Ireland
3
Independent Researcher, N37 RT29 Athlone, Ireland
*
Author to whom correspondence should be addressed.
Coatings 2024, 14(10), 1252; https://doi.org/10.3390/coatings14101252
Submission received: 30 August 2024 / Revised: 13 September 2024 / Accepted: 25 September 2024 / Published: 1 October 2024
(This article belongs to the Section Coatings for Food Technology and System)
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Abstract

This study addresses the gap in research on the application of thermochromic polymers (TPs) in food packaging and their potential for real-time temperature monitoring, aiding in the assessment of food quality and shelf-life. TPs exhibit a visible color change in response to temperature variations. A comprehensive systematic review (SR) across multiple engineering peer-review databases using predefined terms was conducted. Additionally, international patent databases were investigated using the same predefined terms. Independent experts reviewed the methodology to identify and address potential biases. A total of 288 eligible articles and 922 patents were identified. After a duplicate selection and extraction process according to the inclusion criteria, four related full-text publications were selected from the initial 288 articles, and five relevant patents were selected from the 922 patents. The qualitative review suggests that TPs hold significant promise as food packaging materials due to their unique physical properties. The study concludes that TPs offer valuable properties for the food packaging industry, meriting further investigation to exploit their benefits fully.
Keywords: stimuli-responsive materials; thermochromic polymers; food packaging; systematic review; patent landscape analysis stimuli-responsive materials; thermochromic polymers; food packaging; systematic review; patent landscape analysis

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MDPI and ACS Style

Breheny, C.; Donlon, K.; Harrington, A.; Colbert, D.M.; Bezerra, G.S.N.; Geever, L.M. Thermochromic Polymers in Food Packaging: A Comprehensive Systematic Review and Patent Landscape Analysis. Coatings 2024, 14, 1252. https://doi.org/10.3390/coatings14101252

AMA Style

Breheny C, Donlon K, Harrington A, Colbert DM, Bezerra GSN, Geever LM. Thermochromic Polymers in Food Packaging: A Comprehensive Systematic Review and Patent Landscape Analysis. Coatings. 2024; 14(10):1252. https://doi.org/10.3390/coatings14101252

Chicago/Turabian Style

Breheny, Colette, Kieran Donlon, Alan Harrington, Declan Mary Colbert, Gilberto S. N. Bezerra, and Luke M. Geever. 2024. "Thermochromic Polymers in Food Packaging: A Comprehensive Systematic Review and Patent Landscape Analysis" Coatings 14, no. 10: 1252. https://doi.org/10.3390/coatings14101252

APA Style

Breheny, C., Donlon, K., Harrington, A., Colbert, D. M., Bezerra, G. S. N., & Geever, L. M. (2024). Thermochromic Polymers in Food Packaging: A Comprehensive Systematic Review and Patent Landscape Analysis. Coatings, 14(10), 1252. https://doi.org/10.3390/coatings14101252

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