Alginate-based packaging materials have emerged as promising alternatives to conventional petroleum-based plastics due to their biodegradability, renewability, and versatile functionalities. This review provides a comprehensive analysis of the recent advances in the development and application of alginate-based films and coatings for food packaging. The composition and fabrication methods of alginate-based packaging materials are discussed, highlighting the incorporation of various functional compounds to enhance their physicochemical properties. The mechanisms of action and the factors influencing the release and migration of active compounds from the alginate matrix are explored. The application of alginate-based packaging materials for the preservation of various food products, including meat, fish, dairy, fruits, and vegetables, is reviewed, demonstrating their effectiveness in extending shelf-life and maintaining quality. The development of alginate-based pH-sensitive indicators for intelligent food packaging is also discussed, focusing on the colorimetric response of natural pigments to spoilage-related pH changes. Furthermore, the review highlights the challenges and future perspectives of alginate-based packaging materials, emphasizing the need for novel strategies to improve their performance, sustainability, and industrial adoption.

中文翻译：

---

基于藻酸盐的活性和智能包装：制备、性能和应用


海藻酸盐基包装材料因其生物降解性、可再生性和多功能性而成为传统石油基塑料的有前途的替代品。本文全面分析了藻酸盐基薄膜和涂料在食品包装中的开发和应用的最新进展。讨论了藻酸盐基包装材料的组成和制造方法，重点介绍了各种功能性化合物的掺入以增强其物理化学性质。探讨了作用机制以及影响活性化合物从藻酸盐基质中释放和迁移的因素。回顾了藻酸盐基包装材料在保存各种食品（包括肉类、鱼类、乳制品、水果和蔬菜）中的应用，证明了它们在延长保质期和保持质量方面的有效性。还讨论了用于智能食品包装的藻酸盐基 pH 敏感指示剂的开发，重点介绍了天然色素对腐败相关 pH 变化的比色响应。此外，该评论强调了藻酸盐基包装材料的挑战和未来前景，强调需要新的策略来提高其性能、可持续性和工业采用率。