Antimicrobial activity and mechanism of action of oregano essential oil against Morganella psychrotolerans and potential application in tuna
文献类型： 外文期刊
作者： Wang, Di 1 ; Li, Chunsheng 1 ; Pan, Chuang 1 ; Wang, Yueqi 1 ; Xiang, Huan 1 ; Feng, Yang 1 ; Yang, Xianqing 1 ; Chen, Shengjun 1 ; Zhao, Yongqiang 1 ; Wu, Yanyan 1 ; Li, Laihao 1 ; Kawai, Yuji 4 ; Yamazaki, Koji 4 ; Yamaki, Shogo 4 ;
作者机构： 1.Chinese Acad Fishery Sci, Natl Res & Dev Ctr Aquat Prod Proc, South China Sea Fisheries Res Inst, Key Lab Aquat Prod Proc,Minist Agr & Rural Affair, Guangzhou 510300, Peoples R China
2.Jiangsu Ocean Univ, Coinnovat Ctr Jiangsu Marine Bioind Technol, Lianyungang 222005, Peoples R China
3.Dalian Polytech Univ, Collaborat Innovat Ctr Seafood Deep Proc, Dalian 116034, Peoples R China
4.Hokkaido Univ, Fac Fisheries Sci, Lab Marine Food Sci & Technol, Hakodate, Hokkaido 0418611, Japan
关键词： Morganella psychrotolerans; Oregano essential oil; Antimicrobial mechanism; Metabolomics; Seafood safety
期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.056； 五年影响因子：6.295 ）
ISSN： 0023-6438
年卷期： 2022 年 165 卷
页码：
收录情况： SCI
摘要： Morganella psychrotolerans is a psychrotolerant histamine producer capable of accumulating large amounts of histamine at low temperatures. Oregano essential oil (OEO) is a natural antimicrobial agent used widely in the food industry, however, its antimicrobial effectiveness against M. psychrotolerans has not been studied. In this study, the inhibitory activity of OEO against M. psychrotolerans, causing damage to the membrane structure of the cell with 0.025% (v/v) minimum inhibitory concentration (MIC) has been revealed. Metabolomics analysis revealed changes of 161 significant metabolites in ESI+ and ESI- modes, which involved in carbohydrates metabolism, amino acid metabolism, metabolism of cofactors and vitamins, nucleotides metabolism, lipids metabolism, and energy metabolism. Furthermore, challenge tests revealed the OEO exhibited a significant inhibitory effect on M. psychrotolerans in tuna. These results provided new insights into the inhibition action of OEO on M. psychrotolerans and suggested that OEO had the potential to control M. psychrotolerans in the seafood industry.
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