Development of a pectin-based oxygen barrier coating for food packaging applications

IF 8.2 Q1 FOOD SCIENCE & TECHNOLOGY

Future Foods Pub Date : 2025-09-23 DOI:10.1016/j.fufo.2025.100766

Ffyon Moody , Andrew Claypole , Jenny Woods , Ben Clifford , Qiuyun Liu , Craig Hardwick , Chris Phillips , Davide Deganello

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引用次数: 0

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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食品包装用果胶基阻氧涂料的研制

软性食品包装膜是具有挑战性的回收，由于复杂的多层结构所需的屏障性能的食品保护，在一个薄，透明但机械强的系统。这项工作探讨了果胶作为生物衍生的聚对苯二甲酸乙二醇酯（PET）薄膜的阻氧涂层，作为肉类包装的潜在用例，目标是氧气透过率（OTR）低于1 cm3/m2.day.atm。研制了以果胶为基材的水性涂料，并将其沉积在PET薄膜上。这些涂层提供了可行的氧气屏障，将12 μ m PET膜的OTR从90 cm3/m2.day左右降低。未涂覆时的ATM至~ 2-4 cm3/m2.day。当涂层时，结果可与目前商业使用的乙烯基醇（EVOH）相媲美。此外，异丙醇（IPA）和氧化石墨烯（GO）分别作为添加剂进行了研究。添加氧化石墨烯有效（OTR≤0.7 cm3/m2.day）。Atm)，但代价是降低了透明度。添加异丙醇后氧阻最高，OTR≤0.22 cm3/m2.day.atm。测试的果胶涂层被证明是可水洗的，允许容易去除，留下干净的PET薄膜，方便回收。这为使用PET作为可行的包装薄膜开辟了新的机会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Future Foods Agricultural and Biological Sciences-Food Science

CiteScore

8.60

自引率

0.00%

发文量

审稿时长

15 weeks

期刊介绍： Future Foods is a specialized journal that is dedicated to tackling the challenges posed by climate change and the need for sustainability in the realm of food production. The journal recognizes the imperative to transform current food manufacturing and consumption practices to meet the dietary needs of a burgeoning global population while simultaneously curbing environmental degradation. The mission of Future Foods is to disseminate research that aligns with the goal of fostering the development of innovative technologies and alternative food sources to establish more sustainable food systems. The journal is committed to publishing high-quality, peer-reviewed articles that contribute to the advancement of sustainable food practices. Abstracting and indexing： Scopus Directory of Open Access Journals (DOAJ) Emerging Sources Citation Index (ESCI) SCImago Journal Rank (SJR) SNIP