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使用芳香植物和药用植物和素对新鲜奶酪中的Listeria monocytogenes进行控制:一项比较研究
Samir Ananou1, Meryem Bouraqqadi1, Nada Zouhri1
1Laboratoire de Biotechnologie Microbienne et Molécules Bioactives, Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, Route Immouzer, BP 2202, Fez, Morocco.
Letters in applied microbiology
|July 4, 2023
概括
芳香植物的精油 (EO) 和原始提取物 (CE),与素OS1相结合,有效地降低了摩洛哥奶酪中的Listeria monocytogenes. 这种天然组合为新鲜奶酪的安全性和寿命提供了有希望的保存.
科学领域:
- 食品微生物学 食品微生物学
- 自然产品化学 自然产品化学
- 食品保存 食品的保存方法
背景情况:
- 菌对食品安全构成重大风险,特别是在新鲜奶酪中.
- 传统的保存方法可能有局限性,推动寻找自然替代品.
- 芳香植物和药用植物 (AMP) 是具有抗微生物特性的生物活性化合物的来源.
研究的目的:
- 评估八个AMP中精油 (EO) 和原始提取物 (CE) 对摩洛哥新鲜奶酪中的Listeria monocytogenes和食品腐烂细菌的疗效.
- 研究这些植物性抗微生物药物与素OS1.1结合使用时的协同效应.
- 评估这些处理对储存期间新鲜奶酪的保质期和安全性的影响.
主要方法:
- 新鲜奶酪批量用来自各种AMP (例如,Rosmarinus officinalis,Eucalyptus globulus,Crocus sativus) 的EO或CE和/或素OS1进行处理.
- 经过处理和未经处理的奶酪样品在8°C下保存了15天.
- 在储存期间量化了微生物种群 (L. monocytogenes和腐烂细菌).
- 进行了统计分析,包括相关性,差异和主要组件分析.
主要成果:
- 与对照组相比,Allium-EO和Eucalyptus-EO治疗显著减少了李斯特菌的数量,分别为2.68和1.93日志CFU/g.
- 单独使用恩托洛辛OS1可使李斯特菌种群减少1.46日志CFU/g.
- 观察到协同效应:Eucalyptus-EO + OS1和Crocus-CE + OS1治疗在2天内消除了李斯特菌,达到无法检测的水平,并在整个储存期间保持这种状态.
- 在L. monocytogenes的减少和储存时间之间发现了正相关性.
结论:
- 从选定的AMP中提取的精油和原料提取物,特别是树和,在新鲜奶酪中显示出对L. monocytogenes显著的抗菌活性.
- 与素OS1的AMP组合显示出强大的协同效应,导致快速和持续的抑制Listeria.
- 这些天然抗微生物策略为提高新鲜奶酪的安全性和延长保质期提供了可行的方法,减少了对合成防腐剂的依赖.
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