Effect of a Vietnamese Cinnamomum cassia essential oil and its major component trans-cinnamaldehyde on the cell viability, membrane integrity, membrane fluidity, and proton motive force of Listeria innocua.

Canadian Journal of Microbiology
Nga-Thi-Thanh TrinhNadia Oulahal

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.

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Citations

Sep 24, 2015·Journal of Microencapsulation·Nga-Thi-Thanh TrinhNadia Oulahal
Jul 12, 2018·Microbiology·Sanjida Halim TopaLinda L Blackall
Feb 1, 2019·Critical Reviews in Food Science and Nutrition·Jae-Hyun Yoon, Sun-Young Lee
Mar 8, 2019·Microbiology·Shravanthi S Kumar, Asit Ranjan Ghosh
Apr 20, 2017·Frontiers in Microbiology·Xihong ZhaoTian Ding
Sep 29, 2018·Food Science and Biotechnology·Dongyun JungHee Gon Jeong
Aug 14, 2019·International Braz J Urol : Official Journal of the Brazilian Society of Urology·Alev OnderSerap Gur
Mar 17, 2020·Pharmaceutical Development and Technology·Zhang YongChu Xiaoqin
Feb 6, 2019·BMC Complementary and Alternative Medicine·Anna GocMatthias Rath
Apr 28, 2018·Microbial Pathogenesis·N G VasconcelosS Simionatto

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