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Anti-Stenotrophomonas maltophilia Mechanism of Rose Essential Oil: A Metabolomic Study

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Abstract

Stenotrophomonas maltophilia (S. maltophilia) is a spoilage microorganism widely distributed in vegetables, dairy products, and various environments and can cause serious foodborne illnesses. Renowned for its environmentally friendly, safe, and non-toxic properties, rose essential oil (REO) is widely recognized as an exceptional natural antibacterial agent. In the present study, we conducted a comprehensive analysis to elucidate the inhibition mechanism of REO against S. maltophilia at both cellular and metabolic levels. The results demonstrated that REO treatment of cells resulted in the disruption of cell structure and leakage of cellular contents. Remarkable changes in the morphology of bacterial cells were observed under both scanning electron microscopy and transmission electron microscopy. At the metabolic level, multiple metabolic pathways were disrupted after REO treatment, including amino acid metabolism, nucleotide metabolism, and aminoacyl tRNA biosynthesis. These results shed new light to the inhibition mechanism of REO against S. maltophilia and provide a theoretical basis for the development of effective essential oil preservatives.

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Funding

This work was supported by the Key Research and Development Program in Shandong Province (No. 2019YYSP026), Linyi Key Research and Development Project (No. 2020ZX028), and the Central Funds for Guiding the Local Scientific and Technological development (No. YDZX2023036).

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Yu-Han Yuan: conceptualization, methodology, and writing—original draft. Wen-Liang Wang: investigation and formal analysis. Ling-**ao Liu: formal analysis and writing—original draft. Li Guo: visualization and supervision. **ng-Jiang Li: resources and investigation. Yun-Guo Liu: conceptualization, funding acquisition, resources, supervision, and writing—review and editing.

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Correspondence to Yun-Guo Liu.

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Yuan, YH., Wang, WL., Liu, LX. et al. Anti-Stenotrophomonas maltophilia Mechanism of Rose Essential Oil: A Metabolomic Study. Food Bioprocess Technol (2023). https://doi.org/10.1007/s11947-023-03285-w

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  • DOI: https://doi.org/10.1007/s11947-023-03285-w

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