Zhao Luyao, Liu Yan, He Miao, Zhang Dianwei, Liu Huilin, Sun Baoguo
Key Laboratory of Digital-Intelligence and Dynamic Perception for Food Quality of China Light Industry, Beijing Technology and Business University, Beijing, People's Republic of China.
Compr Rev Food Sci Food Saf. 2025 Jul;24(4):e70242. doi: 10.1111/1541-4337.70242.
With the introduction of Industry 5.0, the development of the food packaging industry was inspired by core principles of sustainability, human-centricity, and resilience. Biodegradable polymers, characterized by nontoxic, abundant sources, renewability, and facile degradability, are anticipated to serve as sustainable alternatives to conventional petroleum-based plastics. Moreover, freshness indicator packaging has addressed the limitations of traditional packaging with single-function and garnered significant attention. This packaging directly assesses food freshness without the need for complex operational procedures to enhance consumer convenience. Concurrently, the rapid advancement of digital technology has provided new attempts to address adversities in industrial development. Indeed, emerging evidence increasingly indicates that digital technologies-encompassing machine learning, big data, hierarchical systems, the Internet of Things, and 3D printing, as well as advancements such as deep learning, blockchain, cloud-edge collaboration, the Internet of Everything, and 4D printing-are poised to exert a substantial impact on food packaging. The interdisciplinary integration of digital and packaging technology was expected for material selection, structural design, and technological evolution to offer more suitable solutions and intuitive presentation formats. Thus, the biodegradable freshness indicator packaging and its opportunity should have urgent attention from the food industry 4.0 to 5.0. In this review, we summarized the classification, sources, characteristics, and applications of biodegradable biopolymers in food packaging. Meanwhile, the fundamental principles, research progress, and applications of freshness indicator packaging were discussed in detail. The paper highlighted the attempts and prospects for the codevelopment of digital and packaging technology.
随着工业 5.0 的引入，食品包装行业的发展受到可持续性、以人为本和恢复力等核心原则的启发。可生物降解聚合物具有无毒、来源丰富、可再生和易于降解的特点，有望成为传统石油基塑料的可持续替代品。此外，新鲜度指示包装克服了传统单一功能包装的局限性，受到了广泛关注。这种包装无需复杂的操作程序就能直接评估食品的新鲜度，提高了消费者的便利性。与此同时，数字技术的快速发展为应对工业发展中的困境提供了新的尝试。事实上，越来越多的新证据表明，包括机器学习、大数据、分层系统、物联网和 3D 打印在内的数字技术，以及深度学习、区块链、云边协作、万物互联和 4D 打印等进步，有望对食品包装产生重大影响。数字技术与包装技术的跨学科整合有望在材料选择、结构设计和技术演进方面提供更合适的解决方案和直观的展示形式。因此，可生物降解的新鲜度指示包装及其机遇应受到食品工业从 4.0 到 5.0 的迫切关注。在这篇综述中，我们总结了可生物降解生物聚合物在食品包装中的分类、来源、特性和应用。同时，详细讨论了新鲜度指示包装的基本原理、研究进展和应用。本文重点介绍了数字技术与包装技术协同发展的尝试和前景。
