新型PLA/素与生物释放的Ag-NPs纳米复合材料混合,用于环保食品包装
Malarvizhi Nithya1, Rajeswari Balaji2, Tharani Sundarajan3
1Guru Nanak College, Velachery, Chennai, India. malarvizhi.n@gurunanakcollege.edu.in.
概括
环保食品包装是使用聚乳酸/花素混合物和银纳米颗粒开发的. 这些纳米复合材料薄膜通过抑制微生物生长来增强生物降解性并延长食品的保质期.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 食品科学 食品科学 食品科学
背景情况:
- 传统的食品包装往往缺乏生物降解性和有效的抗微生物特性.
- 用可生物降解的聚合物和抗菌剂增强食品包装对于可持续性和食品安全至关重要.
研究的目的:
- 开发使用聚乳酸 (PLA) /奇托桑混合物的环保食品包装材料.
- 将生物释放的银纳米粒子 (Ag-NP) 纳入,以增强抗菌活性和生物降解性.
- 评估开发的纳米复合材料薄膜的光谱,形态和抗菌性质.
主要方法:
- 聚乳酸 (PLA) 和奇托被溶解并与聚乙烯糖醇400混合.
- 银纳米颗粒 (Ag-NPs) 通过 Tulsi 叶子提取物合成,并纳入PLA/素混合物.
- 描述包括对细菌的光谱,形态和抗微生物分析.
主要成果:
- 光谱和形态学研究证实了纳米复合材料膜中PLA,酸盐和Ag-NPs的成功混合.
- 这种PLA/素/Ag-NPs纳米复合物 (PCAg) 显示出显著的抗菌活性.
- 观察到对黄金葡萄球菌和大肠杆菌有有效的抑制作用.
结论:
- 在环保食品包装应用中,PLA/chitosan/Ag-NPs纳米复合材料薄膜具有前景.
- 这些材料提供增强的生物降解性和有效的抗微生物特性,延长食品的保质期.
- 在Ag-NPs合成中使用tulsi提取物是一种可持续的方法.
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