使用Schisandra chinensis提取物和聚乙烯醇以环保的方式制备的天然抗菌膜
Wenting Jia1, Shanxue Jiang1, Fang Wang1
1School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China.
Chemosphere
|November 3, 2023
概括
这项研究开发了绿色,可生物降解的抗微生物膜,来自于 Schisandra chinensis 提取物和聚乙醇 (PVA). 这些天然膜有效地抑制了常见的食物传播病原体,如大肠杆菌和黄金色杆菌.
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
- 生物技术是生物技术.
背景情况:
- 食品传播病原体对食品安全和质量构成重大风险.
- 传统的食品包装材料往往是不可生物降解的,导致环境污染.
- 对于可持续和抗微生物的食品包装解决方案的需求日益增长.
研究的目的:
- 开发一种绿色和环保的方法,从 Schisandra chinensis.中提取抗菌化合物.
- 使用 Schisandra chinensis 提取物和聚乙烯醇 (PVA) 制备和表征新的抗菌食品包装膜.
- 评估开发的膜的抗微生物有效性和可重复使用性,以对抗常见的食源性病原体.
主要方法:
- 绿色提取 Schisandra chinensis 使用蒸水的抗菌化合物.
- 在没有有机溶剂的情况下制备四种类型的Schisandra chinensis-PVA抗菌膜.
- 使用显微镜 (SEM,AFM),FTIR和物理测试 (拉伸强度,吸水) 进行全面的材料表征.
- 在12小时内对黄金葡萄球菌,MRSA,大肠杆菌和Listeria monocytogenes进行抗菌活性测试.
主要成果:
- 开发了具有不同特性的Schisandra chinensis-PVA膜;MII和MIV没有显示出可见的提取物颗粒.
- MII显示出优越的抗拉强度和透明度,而MIV显示出密集,均的微观结构.
- 所有四种膜类型都显示出对测试病原体 (S. aureus,MRSA,大肠杆菌,L. monocytogenes) 的显著抗菌活性.
- 抗微生物膜至少一次成功重复使用.
结论:
- 建立了一种新的,绿色和可持续的方法来生产基于植物的抗微生物膜.
- 开发的Schisandra chinensis-PVA膜具有出色的抗菌特性,并有可能用于食品包装应用.
- 这项研究为传统的,不可生物降解的包装材料提供了有希望的替代品,增强了食品安全和环境可持续性.
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