食品科学 ›› 2018, Vol. 39 ›› Issue (15): 17-23.doi: 10.7506/spkx1002-6630-201815003

• 基础研究 • 上一篇    下一篇

绿薄荷精油对温和气单胞菌群体感应现象及其腐败特性的抑制作用

梅永超1,李婷婷2,*,刘 楠1,王当丰1,赫彬彬1,励建荣1,*   

  1. 1.渤海大学食品科学与工程学院,生鲜农产品贮藏加工及安全控制技术国家地方联合工程研究中心,辽宁 锦州 121013;2.大连民族大学生命科学学院,辽宁 大连 116600
  • 出版日期:2018-08-15 发布日期:2018-08-15
  • 基金资助:
    国家自然科学基金面上项目(31471639);国家自然科学基金青年科学基金项目(31301572)

Effect of Spearmint Oil on Quorum Sensing and Spoilage Characteristics of Aeromonas sobria

MEI Yongchao1, LI Tingting2,*, LIU Nan1, WANG Dangfeng1, HE Binbin1, LI Jianrong1,*   

  1. 1. National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; 2. College of Life Science, Dalian Minzu University, Dalian 116600, China
  • Online:2018-08-15 Published:2018-08-15

摘要: 本研究以紫色杆菌Chromobacterium violaceum 026(CV026)为检测指标,结合气相色谱-质谱定量检测信 号分子,研究绿薄荷精油对温和气单胞菌群体感应现象及其腐败特性的影响。结果表明:在亚抑菌剂量下,绿 薄荷精油具有降低紫色杆菌CV026产紫色菌素的能力,其剂量为2 μL/mL时,对紫色菌素的抑制率达56.17%; 绿薄荷精油对温和气单胞菌N-酰基高丝氨酸内酯的分泌及某些腐败特性的表达,如生物被膜的形成、胞外蛋白 酶活力和细菌迁移(群集和泳动),均有抑制作用;随着绿薄荷精油剂量的升高,抑制效果更趋明显,并且呈 现剂量依赖性。可见,绿薄荷精油具有良好的群体感应抑制活性,可作为新型的群体感应抑制剂用于延长水产 品货架期。

关键词: 绿薄荷精油, 温和气单胞菌, 群体感应, 抑制作用

Abstract: In this paper, the effect of spearmint oil on quorum sensing and spoilage characteristics of Aeromonas sobria was studied. For this purpose, we firstly assessed the inhibitory impact of spearmint oil on the violacein-producing ability of Chromobacterium violaceum 026 (CV026). The signal molecule was detected by gas chromatography-mass spectrometry (GC-MS). The results showed that spearmint oil could reduce the violacein production of CV026 at sub-minimum inhibitory concentrations. When the concentration of spearmint oil was 2 μL/mL, the inhibitory rate of violacein was 56.17%. The secretion of N-acyl-homoserine lactones (AHLs) and some spoilage characteristics such as biofilm formation, extracellular protease activity and bacterial motility of Aeromonas sobria were inhibited by spearmint oil effectively and dose-dependently. These results showed that spearmint oil could be developed as a quorum sensing inhibitor to enhance the shelf life of aquatic products.

Key words: spearmint oil, Aeromonas sobria, quorum sensing, inhibitory effects

中图分类号: