食品科学 ›› 2010, Vol. 31 ›› Issue (9 ): 140-143.doi: 10.7506/spkx1002-6630-201009033

• 生物工程 • 上一篇    下一篇

黑木耳提取物对细菌群体感应及生物膜形成的抑制作用

李 斌,董明盛*   

  1. 南京农业大学食品科技学院
  • 收稿日期:2009-12-11 出版日期:2010-05-01 发布日期:2010-12-29
  • 基金资助:

    国家自然科学基金项目(30700627);江苏省农业科技自主创新项目(CX(08)113)

Inhibition Effect of Extract from Auricularia auricular on Quorum Sensing and Biofilm Formation of Bacteria

LI Bin,DONG Ming-sheng*   

  1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2009-12-11 Online:2010-05-01 Published:2010-12-29

摘要:

采用报告菌平板法检测黑木耳甲醇粗提物对细菌群体感应现象的抑制作用,同时,采用微孔板法和菌落计数法研究黑木耳粗提物对大肠杆菌Escherichia coli 8099 生物膜形成的影响。结果表明:黑木耳粗提物能有效抑制大肠杆菌生物膜的形成,0.3g/mL 黑木耳粗提物的抑制率可以达到72.16%。

关键词: 细菌群体感应, 黑木耳, 生物膜, 抑制

Abstract:

Methanol-soluble compounds were extracted from Auricularia auricular to investigate the inhibition effect on quorum sensing through agar plate assays. The inhibition effect of extract from Auricularia auricular on biofilm formation of Escherichia coli 8099 was evaluated through ninety-six-well plate biofilm assay and disk reactor biofilm experiments. Approximately 72.16% inhibition rate on biofilm formation was observed in Auricularia auricular extract at the concentration of 0.3 g/mL.

Key words: quorum sensing, Auricularia auricular, biofilm, inhibition

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