合成和表征抗菌性疏水性聚氨的合成和表征
Autumn M Rudlong1, Elizabet Moreno Reyes1, Julie M Goddard1
1Department of Food Science, Cornell University, Ithaca, NY 14853, USA.
Materials (Basel, Switzerland)
|June 28, 2023
概括
一种新的涂层结合了16碳四级化 (C16QAB) 和聚乙烯 (PFPE) 能够有效地减少食物传播的病原体. 这种创新材料可以防止细菌在食品生产环境中的非食品接触面上存活.
科学领域:
- 材料科学 材料科学 材料科学
- 食品安全 食品安全
- 微生物学 微生物学
背景情况:
- 食物传播疾病对公众健康构成重大风险,通常源于制造环境中的细菌交叉污染.
- 现有的卫生指导方针不足以防止在食品生产设施内难以到达的区域的细菌息.
研究的目的:
- 合成和评估一种具有低表面能量和杀菌性质的新型多功能聚氨涂层.
- 为了应对在食品制造环境中的非食品接触面上的细菌持久性的挑战.
主要方法:
- 在聚氨基上合成了一种共聚合物涂层,将16碳四级化 (C16QAB) 与聚乙烯 (PFPE) 集成到聚氨基上.
- 使用已确定的方法测量了修改涂层的临界表面张力.
- 评估了C16QAB + PFPE聚氨对Listeria monocytogenes和Salmonella enterica的杀菌疗效.
主要成果:
- perfluoropolyether (PFPE) 组件显著降低了涂层的临界表面张力,从18.07到13.14 mN m-1.1 的水平.
- C16QAB + PFPE聚氨涂层表现出强大的杀菌活性,在8小时内实现了>6日志减少Listeria monocytogenes和>3日志减少Salmonella enterica.
- 合成的涂层表现出多功能性质,将低表面能量与抗菌作用相结合.
结论:
- 开发的C16QAB + PFPE聚氨涂层有效地防止了病原菌和腐烂细菌的生存和持久性.
- 这种创新的涂层通过减少食品生产中非食品接触面的细菌污染,为提高食品安全提供了有希望的解决方案.
- 低表面能量和抗微生物性能的结合使这种涂层成为食品工业的宝贵工具.
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