迷迭香精油纳米乳对重要食源性致病菌的抗菌作用

EngRN: Biomaterials (Topic) Pub Date : 2019-06-01 DOI:10.29252/jhehp.5.2.6

H. Hassanzadazar, Samira Yousefizadeh, A. Ghafari, Mehdi Fathollahi, Majid Aminzare

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引用次数: 14

摘要

背景:研究迷迭香精油(REO)纳米乳对几种重要食源性致病菌的抑制作用。方法:采用琼脂盘扩散法、微肉汤稀释法和蒸汽相扩散法测定REO和REO纳米乳对金黄色葡萄球菌、大肠杆菌、铜绿假单胞菌、希瓦氏菌、单核增生李斯特菌和肠炎沙门氏菌的抑菌效果。结果:REO纳米乳和REO纳米乳的抑菌效果均随REO浓度的增加而增强。与REO相比，纳米乳在圆盘扩散和蒸汽相扩散两种方法下对所研究细菌的抑菌活性均不显著。对REO及其制备的REO纳米乳的MIC和MBC分析表明，REO及其纳米乳对所研究的细菌均有抑制作用。REO表现出较好的抑制作用。REO和迷迭香精油纳米乳分别对希瓦氏菌、单核增生乳杆菌、金黄色葡萄球菌、肠炎沙门氏菌、大肠杆菌和铜绿假单胞菌的抑制作用最大。结论:综上所述，REO及其纳米乳具有良好的抑制食源性致病菌生长的作用，可作为食品工业中提高食品安全性、延长食品保质期的抗微生物剂。

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Antimicrobial Effects of the Nanoemulsion of Rosemary Essential Oil Against Important Foodborne Pathogens

Background: The purpose of this study was to determine the effect of rosemary essential oil (REO) nanoemulsion against some important food borne pathogens.

Methods: Antibacterial effects of REO and REO nanoemulsion were determined using Agar disc diffusion, Broth microdilution and Steam phase diffusion methods against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Shewanella SP, Listeria monocytogenes and Salmonella enteritidis.

Results: Antibacterial effect of REO and REO nanoemulsion was increased with concentration enhancing of REO. There was no significant antibacterial activity in the effectiveness of nanoemulsion on the studied bacteria in comparison with REO in both disk diffusion and steam phase diffusion methods. MIC and MBC analysis of REO and prepared REO nanoemulsion showed that REO and its nanoemulsion have inhibited all studied bacteria. REO showed better inhibitory effects. REO and nanoemulsion of rosemary essential oil have the greatest effect on Shewanella SP., L. monocytogenes, S. aureus, S.enteritidis, E. coli and P. aeruginosa, respectively.

Conclusion: In total, it can be said that REO and its nanoemulsion are desirable to inhibit the growth of food borne pathogens and can be a good choice as antimicrobial agents in food industry to enhance safety and extend foods’ shelf life.

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EngRN: Biomaterials (Topic)

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