Cellulose is one of the most interesting bioresources owing to its abundance, renewability, and biodegradability. Nanocellulose (NC), which can be isolated from natural cellulosic sources or synthesized by bacteria, has gained much research focus in recent years thanks to its non toxicity, recyclability, biodegradability, and reinforcing capability. The outstanding physical and mechanical properties of NC including high elastic modulus, high surface area, high strength, and high gas barrier properties have prompted its use in biomedical, cosmetic, electronics, and food packaging industries. In this review, we focus on NC sources, extraction methods, and use for the development of sustainable packaging materials. The processing methods of NC-based composites films, the effect of NC incorporation on the properties of packaging films, and health-related issues are discussed.

纤维素由于其丰富性、可再生性和生物降解性而成为最有趣的生物资源之一。纳米纤维素 (NC) 可以从天然纤维素来源中分离或由细菌合成，由于其无毒、可回收、可生物降解和增强能力，近年来受到了很多研究关注。NC 优异的物理机械性能，包括高弹性模量、高表面积、高强度和高气体阻隔性，促使其在生物医学、化妆品、电子和食品包装行业中得到应用。在这篇综述中，我们重点关注 NC 来源、提取方法以及用于开发可持续包装材料的用途。NC基复合薄膜的加工方法，NC掺入对包装薄膜性能的影响，