Department of Environmental Science and Engineering, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China.
Institute of Quality Standard and Testing Technology, BAAFS (Beijing Academy of Agriculture and Forestry Sciences), Beijing 100097, China; Department of Environmental Science and Engineering, Beijing Technology and Business University, Beijing 100048, China.
Food Chem. 2025 Feb 1;464(Pt 2):141643. doi: 10.1016/j.foodchem.2024.141643. Epub 2024 Oct 15.
Packaging plays an important role in delaying food spoilage. However, conventional packaging films do not have antimicrobial properties. Films with antimicrobial components are receiving growing research interest. However, many of the reported studies use conventional non-degradable polymers during film preparation, posing a significant threat to the environment and sustainable development. Furthermore, conventional inorganic antibacterial agents are commonly used during film preparation, posing a risk to food safety. In this study, antibacterial compounds were extracted from diverse plants, and then biodegradable antimicrobial films were prepared in a continuous way via the melt extrusion method. Especially, films prepared using Vernicia fordii and Phyllanthus urinaria extracts showed effective antibacterial activities against common foodborne pathogens. This study is the first to prepare antibacterial films in a continuous way using natural plant extracts as the effective components, and may shed new light on future research in preparing green antibacterial films via environment-friendly approaches.
包装在延缓食物变质方面起着重要作用。然而，传统的包装薄膜没有抗菌性能。具有抗菌成分的薄膜越来越受到研究关注。然而，许多报道的研究在薄膜制备过程中使用常规的不可降解聚合物，这对环境和可持续发展构成了重大威胁。此外，在薄膜制备过程中通常使用常规的无机抗菌剂，这对食品安全构成了风险。在这项研究中，从多种植物中提取了抗菌化合物，然后通过熔融挤出法连续制备了可生物降解的抗菌薄膜。特别是使用紫胶和叶下珠提取物制备的薄膜对常见的食源性致病菌表现出有效的抗菌活性。这项研究首次以天然植物提取物为有效成分连续制备抗菌薄膜，可能为通过环保方法制备绿色抗菌薄膜的未来研究提供新的思路。
