Abstract：
:The antibacterial mechanism of a Cinnamomum cassia essential oil from Vietnam and of its main component (trans-cinnamaldehyde, 90% (m/m) of C. cassia essential oil) against a Listeria innocua strain was investigated to estimate their potential for food preservation. In the presence of C. cassia essential oil or trans-cinnamaldehyde at their minimal bactericidal concentration (2700 μg·mL(-1)), L. innocua cells fluoresced green after staining with Syto9® and propidium iodide, as observed by epifluorescence microscopy, suggesting that the perturbation of membrane did not cause large pore formation and cell lysis but may have introduced the presence of viable but nonculturable bacteria. Moreover, the fluidity, potential, and intracellular pH of the cytoplasmic membrane were perturbed in the presence of the essential oil or trans-cinnamaldehyde. However, these membrane perturbations were less severe in the presence of trans-cinnamaldehyde than in the presence of multicomponent C. cassia essential oil. This indicates that in addition to trans-cinnamaldehyde, other minor C. cassia essential oil components play a major role in its antibacterial activity against L. innocua cells.
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Trinh NT,Dumas E,Thanh ML,Degraeve P,Ben Amara C,Gharsallaoui A,Oulahal Ndoi
10.1139/cjm-2014-0481subject
Has Abstractpub_date
2015-04-01 00:00:00pages
263-71issue
4eissn
0008-4166issn
1480-3275journal_volume
61pub_type
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journal_title：Canadian journal of microbiology
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