设计和开发坚固,日光激活和可充电的生物杀伤性聚合物薄膜,作为有前途的活性食品包装材料
Shahid Ul Islam1, Zheng Zhang1, Cunyi Zhao1
1Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, United States.
ACS applied bio materials
|June 5, 2023
概括
新的活性包装材料使用维生素K3 (VK3) 在白天杀死微生物. 这些耐用,可充电的薄膜为食品安全和延长保质期提供了一个有希望的替代方案.
科学领域:
- 食品科学 食品科学 食品科学
- 材料科学 材料科学 材料科学
- 微生物学 微生物学
背景情况:
- 新出现的传染病需要具有抗微生物特性的活性食品包装.
- 开发有效的抗微生物食品接触面是一个重大挑战.
- 光活性维生素K (VK) 衍生物显示出产生生物杀菌活性氧物种 (ROS) 的潜力.
研究的目的:
- 开发新的白天光介导的生物制药包装材料.
- 调查梅纳 (VK3) 在聚 (乙烯基-协同乙酸) (EVA) 薄膜中融入的情况.
- 为了评估VK3内置的EVA膜的ROS生成和抗菌疗效.
主要方法:
- 制造具有不同VK3度 (1-5%w/w) 的EVA薄膜.
- 薄膜暴露在可见的日光辐射下.
- 使用适当的测定方法评估ROS产量.
- 对向微生物 (大肠杆菌,L.无毒菌,T7菌体) 的抗菌和抗病毒活性的评估.
主要成果:
- 在VK3内置的EVA片在白天光线下成功地产生了ROS.
- 这些膜表现出显著的抗菌和抗病毒活性.
- 通过最佳的VK3度,ROS生产率和杀死微生物的性能得到了提高.
- 生物杀伤功能被证明是持久的,在重复暴露于光线后可以充电.
结论:
- 门纳 (VK3) 可以有效地纳入EVA薄膜,以创建日光激活的抗菌包装.
- 这些材料提供了一种新的,可持续的食品保存方法.
- 这些薄膜的可充电性和耐用性使它们成为传统包装的可行替代品.
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