Journal article 249 views 132 downloads
Development of a pectin-based oxygen barrier coating for food packaging applications
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Davide Deganello
Future Foods, Volume: 12, Start page: 100766
Swansea University Authors:
Ffyon Moody, Andrew Claypole, Ben Clifford, Christopher Phillips , Davide Deganello
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© 2025 The Authors. This is an open access article under the CC BY license.
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DOI (Published version): 10.1016/j.fufo.2025.100766
Abstract
Flexible food packaging films are challenging to recycle due to the complex multi-layer structures required for barrier properties for food protection, in a thin, transparent yet mechanically strong system. This work explores pectin as a bioderived oxygen barrier coating for polyethylene terephthala...
| Published in: | Future Foods |
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| ISSN: | 2666-8335 |
| Published: |
Elsevier BV
2025
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa70504 |
| Abstract: |
Flexible food packaging films are challenging to recycle due to the complex multi-layer structures required for barrier properties for food protection, in a thin, transparent yet mechanically strong system. This work explores pectin as a bioderived oxygen barrier coating for polyethylene terephthalate (PET) films as a potential use case for meat packaging, targeting an oxygen transmission rate (OTR) below 1 cm3/m2.day.atm. Water-based coatings based on pectin were developed and deposited onto PET film. These coatings provided a viable oxygen barrier, reducing the OTR of 12 µm PET film from around 90 cm3/m2.day.atm when uncoated to ∼2-4 cm3/m2.day.atm when coated, a result comparable with ethylene vinyl alcohol (EVOH) currently in commercial use. Additionally, isopropyl alcohol (IPA) and graphene oxide (GO) were individually investigated as additives. GO addition was effective (OTR ≤0.7 cm3/m2.day.atm), but at the expense of reduced transparency. IPA addition resulted in the highest oxygen barrier with an OTR of ≤0.22 cm3/m2.day.atm. The tested pectin coatings were demonstrated to be water washable, allowing easy removal, leaving clean PET film for convenient recycling. This opens new opportunities for the use of PET as a viable thin film for packaging. |
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| Keywords: |
PET; Pectin; graphene oxide; oxygen barrier; recycling |
| College: |
Faculty of Science and Engineering |
| Funders: |
The authors would like to acknowledge the COATED M2A funding from the European Social Fund via the Welsh Government (c80816), the Engineering and Physical Sciences Research Council (Grant Ref: EP/S02252X/1) and Klöckner Pentaplast that has made this research possible. This research was also partly financially supported by the Knowledge Economy Skills Scholarships (KESS 2) through funding of the European social fund (ESF). |
| Start Page: |
100766 |