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用于开发具有增强物理特性的抗菌PLA基膜的多元组件系统

Merve Yaman¹, Semanur Yildiz², Abdil Özdemir¹

¹Department of Chemistry, Faculty of Science, Sakarya University, 54187, Sakarya, Turkey.

International journal of biological macromolecules

|February 8, 2024

概括

这项研究开发了使用氧化大豆油,树树脂,ZnO和精油的抗菌多乳酸 (PLA) 包装膜. 这些膜显示出增强的灵活性和对大肠杆菌和黄金色杆菌的显著抗菌活性.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
食品科学食品科学食品科学

背景情况:

聚乳酸 (PLA) 是一种可生物降解的聚合物,有可能用于食品包装.
提高PLA的抗菌性能和物理特性对于更广泛的应用至关重要.
多元组件系统提供了一种策略来定制聚合物薄膜的性能.

研究的目的:

开发基于PLA的包装薄膜,具有抗微生物特性和改进的物理特性.
评估环氧化大豆油 (ES),杉树脂 (SR),氧化 (ZnO) 和精油 (EO) 对PLA薄膜性能的协同效应.
了解电影组件之间的相互作用及其对整体电影性能的影响.

主要方法:

使用甲基化物制备复合PLA薄膜的溶剂造方法.
在PLA中加入ES (20%),SR (15%),ZnO (0.1%) 和西瓜和三角草EO混合物 (5-10%).
薄膜的特性包括物理,机械,热,屏障和抗菌性质.
使用主要组件和等级集群分析进行统计分析,以区分片属性.

主要成果:

在添加组件时,PLA薄膜表现出增强的灵活性,拉伸强度和弹性模量下降.
SR,ZnO和EO显著传递了抗菌活性,显示了13.83毫米 (大肠杆菌) 和15.67毫米 (金黄色杆菌) 的抑制区.
SR和ZnO提高了屏障性能,而EO则增加了水蒸气的透性.

结论:

多组件PLA薄膜显示出作为可调节的抗微生物和物理性质的替代食品包装的潜力.
精心选择和结合可塑剂,抗菌剂和纳米填充剂对于优化片性能至关重要.
这项研究提供了通过利用组件相互作用来设计先进的包装材料的见解.

关键词:

生物聚合物的生物聚合物.复合电影是一种复合电影.包装片是为了包装.聚乳酸是一种多乳酸.树树脂是一种树脂.这是ZnO纳米粒子.

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