基于蛋白质的可充电和可更换的抗微生物和防涂层在疏水性食品接触表面
Jiahan Zou1, Jody Wong1, Chih-Rong Lee1
1Department of Biological and Agricultural Engineering, University of California, One Shields Avenue, Davis, California 95616, United States.
ACS applied bio materials
|February 28, 2024
概括
食品包装的新型可持续涂层可以对抗细菌和生物膜. 这些可拆卸,可充电的涂层在像低密度聚乙烯 (LDPE) 这样的表面上提高了食品安全.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
背景情况:
- 与新鲜农产品相关的日益严重的食源性疾病需要为与食品接触的表面提供先进的材料解决方案.
- 疏水性接触食品表面,如低密度聚乙烯 (LDPE),需要有效的抗微生物和防处理.
研究的目的:
- 开发一种可持续,高效和可拆卸的抗微生物和防涂层,用于疏水性食品接触表面.
- 评估涂层的稳定性,对抗细菌污染和生物膜形成的有效性,以及可重复使用性.
主要方法:
- 一种新的涂层通过交叉连接酸,凝和大豆蛋白水解剂来合成.
- 评估了涂层在水溶液中的稳定性,对*大肠杆菌*和*无菌菌*的抗菌活性以及生物膜抑制.
- 研究了使用热水或蒸汽的充电能力和清除效率.
主要成果:
- 该涂层在水性洗溶液中表现出稳定性,并有效防止细菌污染和生物膜形成.
- 胺结构增强了抗微生物疗效,使微生物污染减少了多达5 log10 cfu·cm-2.
- 涂层支持至少五个充电周期,并且很容易用热水/蒸汽去除,消除生物膜.
结论:
- 开发的涂层提供了一种可持续的,具有成本效益和实用的解决方案,用于提高与食品接触表面的食品安全.
- 它的可拆卸和可充电性质符合工业卫生协议,使其适用于新鲜农产品行业.
- 这些进展表明,在食品加工环境中广泛采用这些技术有望缓解食源性疾病.
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