开发带有 riboflavin 的光活性基托桑基膜,用于增强抗菌食品包装应用.
Jessica Genovese1, Daniele Maria Martins1, Tiziana Silvetti2
1Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via G. Celoria 2, 20133 Milan, Italy.
Molecules (Basel, Switzerland)
|November 13, 2025
概括
可持续的基托基 (CS) 薄膜含有里波弗拉 (RF) 提供光激活的抗菌性质. 这些新的包装材料有效地减少了细菌的生长,通过自然光敏化延长了食品的保质期.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 生物技术是生物技术.
背景情况:
- 素 (CS) 是一种可生物降解的聚合物,具有包装应用的潜力.
- 开发可持续的抗微生物包装对于食品保存至关重要.
- 自然光敏感剂可以使光激活的抗微生物功能.
研究的目的:
- 为光激活抗微生物包装开发和表征含有利博 (RF) 的基托基膜.
- 为了研究这些CS/RF膜的光化学特性和抗菌疗效.
- 评估CS/RF薄膜在包装应用中的适用性.
主要方法:
- 溶剂造被用来制备基托基 (CS) 片与利博弗拉 (RF).
- 研究了蓝色LED光 (450nm) 下的光化学行为,包括射频光降解和反应性氧物种生成.
- 评估了机械,热,光学,屏障特性和对*Pseudomonas fluorescens*的抗菌活性.
主要成果:
- 在光照时,CS/RF片产生单片氧 (1O2),导致颜色变化.
- 在120分钟的辐射后,抗微生物活性使细菌生长率降低了高达97%.
- 薄膜保持了机械完整性和热稳定性,具有良好的氧气屏障特性,而光学透明度则被调制.
结论:
- CS/RF薄膜是光激活抗微生物包装的一种可持续,功能性的材料.
- 这些电影显示了通过ROS介导的细菌失活来延长食品的保质期的前景.
- 建议在真实食品系统中进行进一步的验证,以确认实际应用潜力.
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