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<p>Food-derived carbon dots (CDs) have garnered increasing attention in food science due to their tunable fluorescence properties, excellent biocompatibility, and robust antibacterial and antioxidant activities. Specifically in the meat sector, integrating food-derived CDs into natural biopolymer matrices to fabricate functional packaging films has yielded active materials that simultaneously preserve meat freshness and enable real-time freshness monitoring. Herein, we elaborate the fundamental physicochemical properties of CDs, dissect their intrinsic antibacterial and antioxidant mechanisms, and highlight the functional enhancement of natural biopolymer films imparted by CDs’ incorporation. We systematically review advances in the application of CDs-incorporated natural biopolymer films for intelligent freshness monitoring and active meat packaging over the past five years. Furthermore, we discuss the prevailing challenges and future prospects in this field, with a focus on the integrated innovation of composite films and biosensors to realize real-time dynamic tracking of multiple meat quality indicators via intelligent monitoring technologies, ultimately providing a theoretical reference for the development of innovative multifunctional active packaging for the meat industry.</p>

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Research Progress of Food-Derived Carbon Dots Intelligent Packaging Materials Based on Natural Biopolymers in Meat Freshness Monitoring and Preservation

  • 期刊论文

  • 发表日期：

    2026年5月1日

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  • Qiulin Wang,
  • Wen Du,
  • Wang Li,
  • Chenzhao Wang,
  • Ran Wang,
  • Zhiwei Su,
  • Xiaotong Lin,
  • Jiamin Tian,
  • Wenlu Li,
  • Xiaomeng Liu,
  • Jingyi Qing,
  • Chunlong Sun

摘要

Food-derived carbon dots (CDs) have garnered increasing attention in food science due to their tunable fluorescence properties, excellent biocompatibility, and robust antibacterial and antioxidant activities. Specifically in the meat sector, integrating food-derived CDs into natural biopolymer matrices to fabricate functional packaging films has yielded active materials that simultaneously preserve meat freshness and enable real-time freshness monitoring. Herein, we elaborate the fundamental physicochemical properties of CDs, dissect their intrinsic antibacterial and antioxidant mechanisms, and highlight the functional enhancement of natural biopolymer films imparted by CDs’ incorporation. We systematically review advances in the application of CDs-incorporated natural biopolymer films for intelligent freshness monitoring and active meat packaging over the past five years. Furthermore, we discuss the prevailing challenges and future prospects in this field, with a focus on the integrated innovation of composite films and biosensors to realize real-time dynamic tracking of multiple meat quality indicators via intelligent monitoring technologies, ultimately providing a theoretical reference for the development of innovative multifunctional active packaging for the meat industry.