Sustainable Indicators Based on Furfural-Derived Colorant-Doped Biobased Polyurethane to Improve Food Safety,ACS Sustainable Chemistry & Engineering

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Sustainable Indicators Based on Furfural-Derived Colorant-Doped Biobased Polyurethane to Improve Food Safety
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2022-06-23 , DOI: 10.1021/acssuschemeng.2c02357
Shenglin Zhou ₁ , Li Wang ₁ , Yazhou Wang ₂ , Hao Ma ₁ , Bin Yan ₁ , Kai Guo ₃ , Qiang Yan ₄ , Haojun Fan ₁ , Jun Xiang ₁

Affiliation

Ensuring food safety is a never-ending challenge. Developing time–temperature indicators (TTIs) having biobased temperature-responsive colorants (TCs) is an effective method for improving food safety. However, these colorants still suffer from limitations, including difficulty in scaling up for industrial production, imposing pressure on edible resources, and poor thermal stability, which seriously impedes their wide use in TTIs. Here, a new generation of biobased TCs based on furfural, featuring high yield, color tunability, reversible color change, and high thermal stability, are demonstrated. After doping them into a plant oil-based polyurethane, the resulting biobased film and corresponding TTI enable us to monitor the thermal history of food stored in the refrigerator precisely and improve food safety before consuming by visual color change. In addition to high biocontent, lightweight, and flexibility, the designed TTIs possess color tunability, durability, reusability, waterproofing ability, and cost efficiency, thus providing a significant step closer to their wide use and sustainability. This work represents an important complement to modern food packaging technology for improving food safety.

中文翻译：

基于糠醛衍生着色剂掺杂的生物基聚氨酯改善食品安全的可持续指标

确保食品安全是一项永无止境的挑战。开发具有生物基温度响应着色剂 (TC) 的时间-温度指示器 (TTI) 是提高食品安全的有效方法。然而，这些着色剂仍存在局限性，包括难以规模化工业化生产，对食用资源造成压力，热稳定性差，严重阻碍了它们在TTI中的广泛应用。在这里，展示了新一代基于糠醛的生物基TC，具有高产率、颜色可调、可逆颜色变化和高热稳定性。将它们掺杂到植物油基聚氨酯中后，生成的生物基薄膜和相应的 TTI 使我们能够精确监控冰箱中储存的食物的热历史，并通过视觉颜色变化提高食用前的食品安全性。除了高生物含量、轻质和柔韧性外，设计的 TTI 还具有颜色可调性、耐用性、可重复使用性、防水能力和成本效益，从而为其广泛使用和可持续性迈出了重要的一步。这项工作是对现代食品包装技术提高食品安全性的重要补充。

更新日期：2022-06-23

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