基于聚乙醇 (PVA) / SiO2涂层的环保抗菌纸,用于在水果保存中按需释放ClO2
Ying Liu1, Qibin Li1, Wanting Yu1
1Chinese-Hungarian Cooperative Research Centre for Food Science, College of Food Science, Southwest University, Chongqing, 400700, PR China.
International journal of biological macromolecules
|December 12, 2025
概括
一种新的抗菌纸在对湿度和二氧化碳的反应中释放二氧化 (ClO2),延长水果的保质期. 这种智能包装显著减少草和棘的腐烂,保持水果的质量.
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
- 化学工程是化学工程的重要组成部分.
背景情况:
- 收获后水果腐烂是一个主要的挑战,由微生物污染驱动.
- 有效的抗菌包装对于保持水果质量和减少损失至关重要.
- 现有的解决方案可能缺乏对动态存储环境的响应能力.
研究的目的:
- 开发一种环保,释放二氧化 (ClO2) 的抗菌纸,用于收获后的果物保存.
- 为了优化涂层配方,以实现高效的ClO2加载和受控释放.
- 评估开发的包装在提高草和棘的储存质量的有效性.
主要方法:
- 用聚乙烯醇 (PVA),纳米二氧化和化 (NaClO2) 涂覆基纸,以创建抗菌纸.
- 通过单因素实验优化涂层配方,以确定NaClO2加载效率.
- 在不同湿度和二氧化碳度下研究ClO2释放行为.
- 评估包装对收获后水果质量参数的影响 (腐烂率,外观,坚硬度等). ) 的情况.
主要成果:
- 优化涂层实现了78.8%的NaClO2加载效率.
- 涂层提高了纸张的光滑性,抗撕裂性和破碎时的延长性,尽管拉伸强度下降.
- ClO2的释放持续了长达35天,由较高的湿度和CO2加快.
- 应用在草和棘上分别降低了52.63%和77.78%的腐烂率,同时保持了质量属性.
结论:
- 开发的抗菌纸提供可控制的ClO2释放,以应对水果呼吸微环境 (高湿度和CO2).
- 这项技术提供了一种简单,环保和适应性的解决方案,可以延长各种水果的保质期.
- 这项研究提出了一个有前途的方法,用于智能收获后保存,显著减少食物损失.
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