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用于抗微生物食品包装的纳米材料涂层色素基生物降解薄膜的合成和表征
Iram Liaqat1, Shiza1, Saiqa Andleeb2
1Microbiology Lab, Department of Zoology, Government College University, Lahore, Pakistan.
Journal of basic microbiology
|October 22, 2025
概括
可生物降解的氧化-奇托桑纳米复合材料薄膜为塑料食品包装提供了一个可持续的替代方案. 这些环保薄膜具有出色的生物降解性和抗菌性质,提高了食品的保质期.
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
- 环境科学 环境科学
背景情况:
- 塑料包装由于不可回收和污染,造成环境和健康风险.
- 生物材料因其生物降解性和可再生性而越来越受食品包装的青.
- 开发可持续替代传统塑料的替代品对于环境保护至关重要.
研究的目的:
- 为生物降解食品包装合成和表征氧化物-素基纳米复合材料 (ZnOCh) 薄膜.
- 评估ZnOCh薄膜的生物降解性和保质期增长能力.
- 评估ZnOCh薄膜对食源性病原体的抗菌活性.
主要方法:
- 在酸盐基质基质中制备了ZnOCh薄膜,其中氧化物纳米颗粒的度各不相同 (1%,2%,3%).
- 鉴定涉及紫外可见光谱,FTIR,X射线衍射和SEM.
- 评估了可生物降解性,肉的保质期延长,以及对Klebsiella pneumoniae和Serratia marcescens的抗菌活性.
主要成果:
- 光谱和显微分析证实了氧化物纳米颗粒的成功形成和纳入奇托基质的成功.
- 1%的ZnOCh薄膜在14天内显著降解 (96.50%±0.56%).
- 这些膜在4°C下有效延长了肉的保质期12天,并显示出显著的抗菌活性 (高达19.6±0.4毫米的抑制区域).
结论:
- ZnOCh纳米复合材料薄膜是传统塑料食品包装的一个有希望的可生物降解的替代品.
- 这些薄膜通过可生物降解性和强大的抗微生物特性提供了增强的食品保存.
- 对ZnOCh薄膜的进一步研究可以有助于减少塑料垃圾和提高食品安全.
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