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In vitro Antimicrobial Activities and Mechanism of 1-Octen-3-ol against Food-related Bacteria and Pathogenic Fungi

文献类型: 外文期刊

作者: Xiong, Chuan 2 ; Li, Qiang 1 ; Li, Shuhong 3 ; Chen, Cheng 4 ; Chen, Zuqin 1 ; Huang, Wenli 2 ;

作者机构: 1.Sichuan Univ, Coll Life Sci, Chengdu 610065, Sichuan, Peoples R China

2.Sichuan Acad Agr Sci, Biotechnol & Nucl Technol Res Inst, Chengdu 610061, Sichuan, Peoples R China

3.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming 650221, Yunnan, Peoples R China

4.Sichuan Acad Agr Sci, Inst Plant Protect, Chengdu 610061, Sichuan, Peoples R China

关键词: 1-octen-3-ol;antimicrobial activity;mechanism;scanning electron microscope

期刊名称:JOURNAL OF OLEO SCIENCE ( 影响因子:1.601; 五年影响因子:1.768 )

ISSN: 1345-8957

年卷期: 2017 年 66 卷 9 期

页码:

收录情况: SCI

摘要: 1-Octen-3-ol, known as mushroom alcohol, is a natural product extracted from fungi and plants. Its antimicrobial activities against five common food-related bacteria and two pathogenic fungi were evaluated in this paper, including Staphylococcus aureus, Bacillus subtilis, Staphylococcus epidermidis, Escherichia coli, Pseudomonas aeruginosa, Fusarium tricinctum and Fusarium oxysporum. The results showed that 1-octen-3-ol had a strong antibacterial activity against the tested bacteria, especially against Gram-positive bacteria, and it can also inhibit fungal growth and spore germination. The minimum inhibitory concentrations (MICs) for Gram-positive bacteria and Gram-negative bacteria were 1.0 and 2.0 mg/mL, respectively. The minimum bactericidal concentrations (MBCs) for Gram-positive bacteria and Gram-negative bacteria were 4.0 and 8.0 mg/mL, respectively. The completely inhibitory concentrations for fungal growth and spore germination were 8.0 and 2.0 mg/ml, respectively. Cell constituents' leakage and scanning electron microscope assays indicated that 1-octen-3-ol changed the permeability of the cell membrane. Discrepant antimicrobial activity between 1-octen-3-ol and 1-octen-3-one indicated that hydroxyl may play a decisive role in antimicrobial activity. It is suggested that 1-octen-3-ol, with attractive mushroom aroma and antimicrobial activity, has potential applications in control of pathogens.

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