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通过反应挤出的抗菌固体粉-复合物及其在PLA-PBAT吹膜中的应用

Apoorva Kulkarni^1,2, Dimple Sharma³, Alexander Ermlich⁴

¹Department of Chemical Engineering & Material Science, Michigan State University, East Lansing, MI 48824, USA.

|June 19, 2024

概括

一种以颗粒形式的新型粉-复合物表现出强大的抗真菌和抗菌特性,延长草的保质期,并显示出对抗菌膜的希望. 这种方法安全地引入用于实际应用.

科学领域:

材料科学材料科学材料科学
食品科学食品科学食品科学
聚合物科学聚合物科学

背景情况:

传统的处理带来了重大风险.
开发安全有效的输送系统对于抗微生物应用至关重要.
粉-复合物为控制释放提供了一个潜在的解决方案.

研究的目的:

为了准备和表征固体粉-复合的主.
为了评估粉-复合物的抗真菌和抗菌功效.
将复合物纳入聚合物薄膜并评估其抗菌性能和机械性能.

主要方法:

使用双螺杆挤出制备粉-复合颗粒.
热重力测量分析 (TGA) 来评估的稳定性.
对草进行抗真菌检测和对大肠杆菌进行抗菌检测 (Kirby-Bauer测试).
将其纳入PLA-PBAT膜,并通过ISO 22196进行评估.
机械性能测试 (拉力强度,破裂时的延伸) 和SEM分析.

主要成果:

稳定的粉-复合颗粒 (6.7%) 在挤出过程中成功制备,没有显著的损失.
抗真菌活性使草的保质期从2天延长到8天.
证明了对大肠杆菌的有效抗菌活性.
与对照组和银基膜相比,含粉-复合物的PLA-PBAT薄膜显示出优越的抗菌性能.
机器方向的机械性能相似,但由于分散不均,横向拉伸强度下降.

结论:

固体粉-复合物是一种安全有效的输送方法.
这种方法提高了食品的保存性,并提供了抗微生物包装解决方案.
需要进一步优化分散,以改善复合膜的机械性能.

关键词:

在PBAT和PBAT之间这就是为什么PLA PLA PLA.它是一种抗菌药物,具有抗菌作用.电影电影电影电影电影的含量是多少? 是什么?反应挤出反应式挤出.这是一种粉,粉.

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