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Interstrains comparison of the antimicrobial effect and mode of action of a Vietnamese Cinnamomum cassia essential oil from leaves and its principal component against Listeria monocytogenes.
Dumas, E; Degraeve, P; Trinh, N-T-T; Le Thanh, M; Oulahal, N.
Affiliation
  • Dumas E; Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733), IUT Lyon 1 site de Bourg en Bresse - Technopole Alimentec, Université de Lyon, Université Claude Bernard, Lyon 1 - ISARA Lyon, rue Henri de Boissieu, Bourg en Bresse, France.
  • Degraeve P; Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733), IUT Lyon 1 site de Bourg en Bresse - Technopole Alimentec, Université de Lyon, Université Claude Bernard, Lyon 1 - ISARA Lyon, rue Henri de Boissieu, Bourg en Bresse, France.
  • Trinh NT; Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733), IUT Lyon 1 site de Bourg en Bresse - Technopole Alimentec, Université de Lyon, Université Claude Bernard, Lyon 1 - ISARA Lyon, rue Henri de Boissieu, Bourg en Bresse, France.
  • Le Thanh M; Ecole de Biotechnologie et Technologie Alimentaire, Institut Polytechnique de Hanoi, Hanoi, Vietnam.
  • Oulahal N; Ecole de Biotechnologie et Technologie Alimentaire, Institut Polytechnique de Hanoi, Hanoi, Vietnam.
Lett Appl Microbiol ; 72(6): 757-766, 2021 Jun.
Article in En | MEDLINE | ID: mdl-33598964
The antibacterial activity of a Cinnamomum cassia essential oil (EO) and of its main component trans-cinnamaldehyde (90% w/w) was examined against five Listeria monocytogenes strains. The minimal inhibitory concentrations (MICs) of C. cassia EO against the five L. monocytogenes strains were identical (250 µg ml-1 ), while the minimal bactericidal concentrations (MBCs) ranged between 800 and 1200 µg ml-1 . In order to study if this EO and trans-cinnamaldehyde altered the five strains at the membrane level, fluorescence anisotropy of 1,6-diphenyl-1,3,5-hexatriene (DPH) was measured in presence of different concentrations (1/2MIC, MIC, 2MIC) of these antibacterial agents. A concentration-dependent increase of fluorescence anisotropy of DPH in their presence reflecting a rigidification of the membrane was observed for the five strains. This modification of the membrane fluidity was associated with a perturbation of the selective membrane permeability, as a perturbation of the gradient between intracellular and extracellular pH was also observed.
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Full text: 1 Database: MEDLINE Main subject: Acrolein / Plant Oils / Oils, Volatile / Cinnamomum aromaticum / Listeria monocytogenes / Anti-Bacterial Agents Language: En Journal: Lett Appl Microbiol Year: 2021 Type: Article Affiliation country: France

Full text: 1 Database: MEDLINE Main subject: Acrolein / Plant Oils / Oils, Volatile / Cinnamomum aromaticum / Listeria monocytogenes / Anti-Bacterial Agents Language: En Journal: Lett Appl Microbiol Year: 2021 Type: Article Affiliation country: France