Sun Jiaojiao, Yang Xi, Bai Yifan, Fang Zhisheng, Zhang Shuai, Wang Xiaoyu, Yang Yali, Guo Yurong
Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Xi'an 710119, China.
National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Xi'an 710119, China.
Foods. 2024 Dec 11;13(24):3999. doi: 10.3390/foods13243999.
There is growing interest in the use of bio-based materials as viable alternatives to petrochemical-based packaging. However, the practical application of bio-based films is often hampered by their poor barrier and poor mechanical properties. In this context, cellulose nanofibers (CNFs) have attracted considerable attention owing to their exceptional biodegradability, high aspect ratio, and large surface area. The extraction of CNFs from agricultural waste or non-food biomass represents a sustainable approach that can effectively balance cost and environmental impacts. The functionalization of CNFs improves the economics of raw materials and production processes while expanding their applications. This paper reviews recent advances in cellulose nanofibers, including their sources, surface modification, and characterization techniques. Furthermore, we systematically discuss the interactions of CNFs with different composites in the development of functional food films. Finally, we highlight the application of cellulose nanofiber films in food preservation. Due to their environmentally friendly properties, CNFs are a promising alternative to petroleum-based plastics. The aim of this paper is to present the latest discoveries and advances in CNFs while exploring the future prospects for edible food films, thereby encouraging further research and application of CNFs in the field of active food packaging.
将生物基材料用作石化基包装的可行替代品正引发越来越多的关注。然而，生物基薄膜的实际应用常常因其阻隔性能差和机械性能不佳而受到阻碍。在这种背景下，纤维素纳米纤维（CNF）因其卓越的生物降解性、高长径比和大表面积而备受关注。从农业废弃物或非食用生物质中提取CNF是一种可持续的方法，能够有效平衡成本与环境影响。CNF的功能化在提高原材料和生产过程经济性的同时，还拓展了它们的应用。本文综述了纤维素纳米纤维的最新进展，包括其来源、表面改性和表征技术。此外，我们系统地讨论了在功能性食品薄膜开发中CNF与不同复合材料的相互作用。最后，我们强调了纤维素纳米纤维薄膜在食品保鲜中的应用。由于其环保特性，CNF是石油基塑料的一种有前景的替代品。本文旨在介绍CNF的最新发现和进展，同时探索可食用食品薄膜的未来前景，从而鼓励在活性食品包装领域对CNF进行进一步研究和应用。
