Listeria monocytogenes isolated from the smoked salmon industry: Growth potential under different environmental conditions

Serio, Annalisa; Chaves‐López, Clemencia; Paparella, Antonello

doi:10.1016/j.foodcont.2011.05.010

Cited by 9 publications

(4 citation statements)

References 25 publications

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“…This was in agreement with the results of Li et al (2015). In addition, when bacteria, including P. fluorescens, were exposed to stress of low temperatures, a cold-adapted mechanism may occur in order to maintain microbiological activity (Serio et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Study on the spoilage potential of Pseudomonas fluorescens on salmon stored at different temperatures

et al. 2017

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The bacterial kinetics and quality indexes [sensory quality, total volatile basic nitrogen (TVB-N), thiobarbituric acid value, biogenic amine, and amino acids] were analyzed on salmon inoculated with during storage under different temperatures (30, 10, and 4 °C). The bacterial kinetics revealed that showed a steady growth at low temperatures (10 and 4 °C). The TVB-N yield factors of the sample stored at 4 °C indicated that each bacterial cell of displayed greater spoilage activity at low temperatures. A remarkable correlation was found between the production of biogenic amines and bacterial counts. The results also highlighted that cultured at 4 °C had higher demand for amino acids.

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Section: Discussionmentioning

confidence: 99%

Study on the spoilage potential of Pseudomonas fluorescens on salmon stored at different temperatures

et al. 2017

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“…The isolates have been previously identified as Listeria monocytogenes by molecular methods. In detail, the chromosomal DNA was extracted as described by Serio et al (2007), while for the identification, the presence of the genes encoding for 16S rRNA, common in the genus Listeria, and hlyA, specific for the species L. monocytogenes, was determined according to the protocol of Border et al (1990), with some modifications, as reported by Serio et al (2011). Type strain ATCC 19114 was used as control.…”

Section: Microorganismsmentioning

confidence: 99%

Thymus vulgaris L. essential oils from Emilia Romagna Apennines (Italy): phytochemical composition and antimicrobial activity on food-borne pathogens

Tardugno

Serio

Purgatorio

et al. 2020

Natural Product Research

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Between Modena and Bologna Apennines (Italy), several agricultural farms have recently been dedicated to the cultivation of autochthonous aromatic plants as primary cultivation or to complement other crops. In this study, the chemical composition of Thymus vulgaris L. essential oils (EOs) from this region were evaluated by means of gas-chromatographic analysis. Three different mulching techniques in particular, soil coverage with grass, mulch with plastic film and with straw were investigated. The results highlighted that mulching techniques influenced the composition of the analysed EOs. All the EOs exerted good antimicrobial activity against clinical and food strains of the pathogen Listeria monocytogenes, with differences related to the composition. The EO obtained from plants covered with grass showed the best results, having MIC ≤ 2.5 µL/mL, and being able to inhibit also antibiotic-resistant strains, thus confirming that soil coverage with grass influences the composition and also the biological activity of Thymus vulgaris EO.

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“…We tackled this issue with the bacterial model L. monocytogenes as this food-borne pathogen is ubiquitous in nature. It has been isolated from water systems (De Luca et al, 1998 ; Paillard et al, 2005 ; Lyautey et al, 2007 ), vegetation (Welshimer, 1968 ; Beuchat, 1996 ), farms (Nightingale et al, 2004 ; Fox et al, 2009 ; Latorre et al, 2010 ; Strawn et al, 2013 ), food industries (Goulet et al, 1998 ; Garrido et al, 2009 ; Serio et al, 2011 ), and feces of animals (Fenlon, 1985 ; Iida et al, 1991 ). It is also found in soil (Welshimer, 1960 ; Weis and Seeliger, 1975 ; Locatelli et al, 2013a ; Vivant et al, 2013a ).…”

Section: Introductionmentioning

confidence: 99%

The Agr communication system provides a benefit to the populations of Listeria monocytogenes in soil

Vivant

Garmyn

Gal

et al. 2014

Front. Cell. Infect. Microbiol.

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In this study, we investigated whether the Agr communication system of the pathogenic bacterium Listeria monocytogenes was involved in adaptation and competitiveness in soil. Alteration of the ability to communicate, either by deletion of the gene coding the response regulator AgrA (response-negative mutant) or the signal pro-peptide AgrD (signal-negative mutant), did not affect population dynamics in soil that had been sterilized but survival was altered in biotic soil suggesting that the Agr system of L. monocytogenes was involved to face the complex soil biotic environment. This was confirmed by a set of co-incubation experiments. The fitness of the response-negative mutant was lower either in the presence or absence of the parental strain but the fitness of the signal-negative mutant depended on the strain with which it was co-incubated. The survival of the signal-negative mutant was higher when co-cultured with the parental strain than when co-cultured with the response-negative mutant. These results showed that the ability to respond to Agr communication provided a benefit to listerial cells to compete. These results might also indicate that in soil, the Agr system controls private goods rather than public goods.

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Listeria monocytogenes isolated from the smoked salmon industry: Growth potential under different environmental conditions

Cited by 9 publications

References 25 publications

Study on the spoilage potential of Pseudomonas fluorescens on salmon stored at different temperatures

Study on the spoilage potential of Pseudomonas fluorescens on salmon stored at different temperatures

Thymus vulgaris L. essential oils from Emilia Romagna Apennines (Italy): phytochemical composition and antimicrobial activity on food-borne pathogens

The Agr communication system provides a benefit to the populations of Listeria monocytogenes in soil

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