Antibacterial activity of cinnamon essential oil against foodborne Salmonella enteritidis and Listeria monocytogenes

  • HONG Xiaoli ,
  • YAN Yuan ,
  • LIN Lingmiao ,
  • ZHU Junli ,
  • HUANG Jianfeng
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  • 1(School of Food Science and Biotechnology,Zhejiang Gongshang University,Hangzhou 310018,China)
    2(Zhejiang Fangyuan Checking Group Co.Ltd.,Hangzhou 310018,China)

Received date: 2020-11-06

  Revised date: 2020-12-11

  Online published: 2021-09-27

Abstract

The effect of cinnamon essential oil (EO) on Salmonella enteritidis and Listeria monocytogenes were studied. The minimum inhibitory concentration (MIC) and the AI-2 activity were investigated. The effect of cinnamon EO on quality in beef juice and antibacterial activity against two pathogens were further evaluated. The results indicated that the MIC against S. enteritidis and L. monocytogenes were 0.1 and 0.2 mg/mL, respectively. The conductivity of S. enteritidis and L. monocytogenes increased with time, the leahage of cell inner components were correlated with cinnamon EO. S. enteritidis had higher leakage of cell inner components than that of L. monocytogenes. Sub-MIC of cinnamon EO effectively reduced the adhesion and AI-2 signaling of two pathogens, in which dropped by 42.8% and 37.6% with 1/2 MIC, respectively. The inhibition of cinnamon EO at 0.1-0.8 mg/mL in chilled beef juice at 10 ℃ was weaker than that of TSB medium. The total number of colonies, S. enteritidis and L. monocytogenes were decreased by 2.38, 3.56 and 2.97 lg CFU/mL in beef juice treated with 0.8 mg/mL cinnamon EO for 3 days at 10 ℃. Thus, cinnamon EO showed good antibacterial and bactericidal activity against S. enteritidis and L. monocytogenes. Additionally, S. enteritidis was more sensitive to cinnamon EO than L. monocytogenes, and sub-MIC cinnamon EO decreased the biofilm formation by interfering with AI-2 activity. The research will provide a theoretical basis for the preservation application of plant EO in meat industry.

Cite this article

HONG Xiaoli , YAN Yuan , LIN Lingmiao , ZHU Junli , HUANG Jianfeng . Antibacterial activity of cinnamon essential oil against foodborne Salmonella enteritidis and Listeria monocytogenes[J]. Food and Fermentation Industries, 2021 , 47(17) : 54 -60 . DOI: 10.13995/j.cnki.11-1802/ts.026116

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