植物精油和提取物对抗食品传播病原体的协同抗微生物相互作用
Manasweeta Angane1,2,3, Simon Swift2, Kang Huang1
1Food Science, School of Chemical Sciences The University of Auckland Auckland New Zealand.
Food science & nutrition
|February 19, 2024
概括
精油 (EO) 和植物提取物的协同组合显示出强大的抗菌活性. 胡卜和西红EO,或胡卜EO与费乔亚皮提取物,有效地消除了常见的食源性病原体,提供了天然的食品保存解决方案.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 自然产品化学 自然产品化学
背景情况:
- 精油 (EO) 和植物提取物具有针对各种病原体的抗微生物特性.
- 个别的EO和提取物对广泛的细菌具有有限的疗效.
- 开发天然防腐剂需要确定具有协同作用的有效组合.
研究的目的:
- 分析选定的EO和植物提取物的化学成分.
- 为了确定单个和组合的EO/提取物对关键的食源性病原体的抗菌活性.
- 评估有希望的EO/提取物组合的协同效应和杀死时间动力学.
主要方法:
- 气色谱-质谱 (GC-MS) 用于化学成分分析.
- 汁微稀释和棋盘测试以确定最小抑制度 (MIC) 和协同效应.
- 杀死时间动力学测试以评估细菌根除率.
主要成果:
- 胡,红枣,衣草和叶EOs/提取物含有不同的主要化合物 (mentol,thymol,linalol,flavones).
- 胡卜/西红和胡卜/菲荷亚皮提取物的组合显示出针对大肠杆菌和单细胞菌菌的显著协同抗菌活性.
- 这些协同作用的组合对所有五种测试的病原体 (*大肠杆菌*, *肠道沙门菌*, *金黄色葡萄球菌*, *谷类细菌*, *L.单细胞菌*) 具有高度的有效性.
- 胡卜/西红和胡卜/菲奥雅树皮提取物组合实现了快速根除大肠杆菌 (10-30分钟) 和单细胞菌L. monocytogenes (4-6小时).
结论:
- 植物提取物和EO的协同作用组合为食品保存提供了强大的天然替代品.
- 胡卜/西红和胡卜/花莲皮提取物组合显示出广泛的疗效和快速的杀菌作用.
- 这些发现支持减少剂量和扩大天然防腐剂在食品中的应用.
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