Sustainable Photoluminescent Cellulose Composites for Next-Generation Intelligent Packaging

Abstract

Cellulose and derivatives play a vital role in the preparation of food packaging materials. The properties of renewability, biodegradability, high strength, and functionalization have made them an ideal substitute for traditional petroleum-based materials and are widely used in the development of high-performance, environmentally friendly, and functional materials. Based on freshness monitoring, anti-counterfeiting, intelligent packaging, and other characteristics, photoluminescent cellulose materials have achieved rapid development in recent years. However, there remains a lack of comprehensive reviews systematically addressing the luminescent fundamentals, preparation methodologies, functionalization strategies, and implementation frameworks of cellulose-based photoluminescent materials, particularly in the context of next-generation intelligent packaging. In this review, we will comprehensively introduce the development and application of cellulose-based photoluminescent materials, especially in the field of intelligent food packaging, by combining cellulose extraction, functional modification, and advanced technologies involved. By discussing the opportunities and challenges that may be faced in the future, propose the possible development directions. We believe that this review has important guiding significance for the further development of cellulose-based photoluminescent materials in advanced packaging systems.