Adak Bapan, Baidya Soubani, Teramoto Yoshikuni
Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
Carbohydr Polym. 2025 Nov 1;367:123966. doi: 10.1016/j.carbpol.2025.123966. Epub 2025 Jun 30.
This review explores the evolving landscape of sustainable food packaging, focusing on biopolymer and nanomaterial-based coatings for paper substrates. As global initiatives prioritize circular economy strategies, the demand for biodegradable and recyclable alternatives to single-use, petroleum-based polymers has intensified. Paper packaging emerges as a promising candidate, despite inherent barrier performance limitations. This review examines recent advancements in enhancing paper-based packaging through biopolymer coatings and nanocomposites. It investigates utilization of various biopolymers including polysaccharides (cellulose, starch, chitosan, alginate), lignin, proteins (soy, whey, zein, gluten, casein), lipid, and various aliphatic polyesters, based on their potential to improve barrier properties against oxygen, moisture, and microbial contamination. The synergistic effects of incorporating nanomaterials into biopolymer matrices are discussed, highlighting their role in augmenting mechanical and different barrier characteristics. The review encompasses different barrier property requirements for flexible food packaging materials, biopolymer utilization in paper coatings using various approaches, and the potential of different nanomaterials and their composites. It also discusses multi-phase and multi-layer coating strategies for imparting multifunctional properties to paper-based packaging. Furthermore, the study addresses biodegradability, recyclability, challenges, and future opportunities in this field, providing insights into sustainable packaging solutions that balance environmental concerns with food safety and quality.
本综述探讨了可持续食品包装不断演变的格局，重点关注用于纸质基材的生物聚合物和纳米材料涂层。随着全球倡议将循环经济战略作为优先事项，对一次性石油基聚合物的可生物降解和可回收替代品的需求日益增加。尽管纸质包装存在固有的阻隔性能限制，但它仍是一个有前途的候选材料。本综述研究了通过生物聚合物涂层和纳米复合材料增强纸质包装的最新进展。它研究了各种生物聚合物的利用情况，包括多糖（纤维素、淀粉、壳聚糖、藻酸盐）、木质素、蛋白质（大豆、乳清、玉米醇溶蛋白、面筋、酪蛋白）、脂质和各种脂肪族聚酯，基于它们改善对氧气、水分和微生物污染的阻隔性能的潜力。讨论了将纳米材料掺入生物聚合物基质中的协同效应，突出了它们在增强机械性能和不同阻隔特性方面的作用。该综述涵盖了柔性食品包装材料的不同阻隔性能要求、使用各种方法在纸质涂层中利用生物聚合物，以及不同纳米材料及其复合材料的潜力。它还讨论了赋予纸质包装多功能特性的多相和多层涂层策略。此外，该研究探讨了该领域的生物降解性、可回收性、挑战和未来机遇，为平衡环境问题与食品安全和质量的可持续包装解决方案提供了见解。
