Antibiofilm Effects of Oleuropein against : An In Vitro Study.

Journal: Foods (Basel, Switzerland)
Published Date:

Abstract

has posed a huge threat to human health and the economy. Oleuropein has antibacterial activities against various microorganisms but research on its effect on the biofilm is limited. This research aimed to estimate the antibiofilm activities of oleuropein against . The results suggest that the minimum inhibitory concentration of oleuropein against ATCC 25923 was 3 mg/mL. The biomass of biofilms formed on the microplates and coverslips and the viability of bacteria were significantly reduced after the treatment with oleuropein. The scanning electron microscopy observation results indicated that the stacking thickness and density of the biofilm decreased when was exposed to oleuropein. It had a bactericidal effect on biofilm bacteria and removed polysaccharides and proteins from mature biofilms. The effects of oleuropein on the biofilm could be explained by a reduction in bacterial secretion of extracellular polymeric substances and a change in bacterial surface hydrophobicity. Based on the above findings, oleuropein has the potential to be used against food pollution caused by biofilms.

Authors

  • Weiping Guo
    College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China.
  • Yunfeng Xu
    College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China.
  • Yangyang Yang
    College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China.
  • Jinle Xiang
    College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China.
  • Junliang Chen
    College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China.
  • Denglin Luo
    College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China.
  • Qinggang Xie
    Heilongjiang Feihe Dairy Co., Ltd., Beijing 100015, China.

Keywords

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