Exposure of Listeria monocytogenes to sublethal amounts of Origanum vulgare L. essential oil or carvacrol in a food-based medium does not induce direct or cross protection

Luz, Isabelle da Silva; Neto, Nelson Justino Gomes; Tavares, Adassa Gama; Magnani, Marciane; Souza, Evandro Leite de

doi:10.1016/j.foodres.2012.05.026

Cited by 23 publications

(14 citation statements)

References 33 publications

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“…29,30 Nevertheless, our study confirmed that this oil can also be a natural active as an alternative for usage in personal care products such as deodorants, due to its antimicrobial activity against the main bacteria responsible for bad perspiration odor. Its antibacterial properties are often associated with the phenolic compounds caracole and thymol and their precursors γ-terpinene and p-cymene.…”

Section: Discussionsupporting

confidence: 65%

Essential Oil from Origanum vulgare Linnaeus: An Alternative Against Microorganisms Responsible for Bad Perspiration Odor

Y¹,

P²,

M³

et al. 2014

JYP

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Objective: The aim of this study was to evaluate the antimicrobial activity of the essential oil from Origanum vulgare Linnaeus against the main bacteria responsible for bad perspiration odor (Corynebacterium xerosis IAL 105, Micrococcus luteus ATCC 7468, Proteus vulgaris ATCC 13315 and Staphylococcus epidermidis ATCC 12228) and to develop the formulation of a deodorant containing the essential oil as antimicrobial agent. Method: The antimicrobial activity was evaluated by means of the turbidimetric method, by using the microdilution assay. The chemical profile of the essential oil was evaluated by high-resolution gas chromatography (HR-GC). Results: seventeen constituents were identified, being that γ-terpinene (30.5%) and carvacrol (15.7%) were the major components found. The essential oil exhibited antimicrobial activity against all microorganisms tested and the minimum inhibitory concentration (MIC) values ranged from 0.7 to 2.8 mg/mL. Electron microscopies confirmed the morphological alteration in the structure of the bacteria treated with the essential oil as compared to control. The formulation of the deodorant demonstrated bactericidal activity and it was able to cause damage in the morphological structure of the treated bacteria. Conclusion: The essential oil from O. vulgare can be used as a potential natural antimicrobial agent to be applied in personal care products.

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Section: Discussionsupporting

confidence: 65%

Essential Oil from Origanum vulgare Linnaeus: An Alternative Against Microorganisms Responsible for Bad Perspiration Odor

Y¹,

P²,

M³

et al. 2014

JYP

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“…The strongest inhibitory effect of OVEO against E. coli and L. monocytogenes in comparison to ROEO, considering their MIC values, has been previously reported (Azerêdo et al, 2011;Luz et al, 2012). These findings have been related with the differences in composition between these EOs.…”

Section: Discussionmentioning

confidence: 79%

“…Additionally, consumers have demanded safer, fresher and healthier foods with no or few chemical preservatives, creating a market demand for natural, non-thermal and feasible technologies for ensuring the microbial safety of foods (Sivakumar and Bautista-Baños, 2014). The EOs from Origanum vulgare L.-oregano (OVEO) and Rosmarinus officinalis L.-rosemary (ROEO) have shown broad-spectrum antimicrobial activity against a range of food-related bacteria in synthetic media and in mimicking foodmodels (Azerêdo et al, 2011;Gomes-Neto et al, 2014;Luz et al, 2012). PEF has presented efficacy in bacterial inactivation to guarantee food safety, and in contrast to heat treatments presents minimal impact on sensory and nutritional food properties (Espina et al, 2013;Chueca et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Influence of general stress-response alternative sigma factors σS (RpoS) and σB (SigB) on bacterial tolerance to the essential oils from Origanum vulgare L. and Rosmarinus officinalis L. and pulsed electric fields

Neto

Magnani

Chueca

et al. 2015

International Journal of Food Microbiology

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“…Carvacrol (CAR) and 1,8-cineole (CIN), the major compounds of Origanum vulgare L. and Rosmarinus officinalis L. essential oils, respectively, exhibit antimicro bial activity against a range of spoiling and pathogenic bacteria (13,14,18), including A. hydrophila (3).…”

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confidence: 99%

Influence of Carvacrol and 1,8-Cineole on Cell Viability, Membrane Integrity, and Morphology of Aeromonas hydrophila Cultivated in a Vegetable-Based Broth

Sousa

Oliveira

Figueiredo

et al. 2015

Journal of Food Protection

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This study investigated the effects of carvacrol (CAR) and 1,8-cineole (CIN) alone (at the MIC) or in combination at subinhibitory amounts (both at 1/8 MIC) on the cell viability, membrane permeability, and morphology of Aeromonas hydrophila INCQS 7966 (A. hydrophila) cultivated in a vegetable-based broth. CAR and CIN alone or in combination severely affected the viability of the bacteria and caused dramatic changes in the cell membrane permeability, leading to cell death, as observed by confocal laser microscopy. Scanning and transmission electron microscopy images of bacterial cells exposed to CAR or CIN or the mixture of both compounds revealed severe changes in cell wall structure, rupture of the plasma membrane, shrinking of cells, condensation of cytoplasmic content, leakage of intracellular material, and cell collapse. These findings suggest that CAR and CIN alone or in combination at subinhibitory amounts could be applied to inhibit the growth of A. hydrophila in foods, particularly as sanitizing agents in vegetables.

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Exposure of Listeria monocytogenes to sublethal amounts of Origanum vulgare L. essential oil or carvacrol in a food-based medium does not induce direct or cross protection

Cited by 23 publications

References 33 publications

Essential Oil from Origanum vulgare Linnaeus: An Alternative Against Microorganisms Responsible for Bad Perspiration Odor

Essential Oil from Origanum vulgare Linnaeus: An Alternative Against Microorganisms Responsible for Bad Perspiration Odor

Influence of general stress-response alternative sigma factors σS (RpoS) and σB (SigB) on bacterial tolerance to the essential oils from Origanum vulgare L. and Rosmarinus officinalis L. and pulsed electric fields

Influence of Carvacrol and 1,8-Cineole on Cell Viability, Membrane Integrity, and Morphology of Aeromonas hydrophila Cultivated in a Vegetable-Based Broth

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