Lactic acid bacteria in an alginate film inhibit Listeria monocytogenes growth on smoked salmon

Concha-Meyer, Aníbal; Schöbitz, Renate; Brito, Carmen; Fuentes, Héctor R.

doi:10.1016/j.foodcont.2010.09.032

Cited by 89 publications

(43 citation statements)

References 23 publications

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“…The antimicrobial agents for animal and human use when discharged in the water environment alter the ecological balance [36] and increase the incidence of resistant bacteria in water environments and seafood. Although the resistance transference indices in foodstuffs and aquatic environments are lower than in clinical indices [12], microorganism accumulation in bivalve mollusks tissues may facilitate this transference.…”

Section: Antimicrobial Susceptibility Profilementioning

confidence: 94%

“…It is also desirable that the probiotic species have specificity with host species [11]. The incidence of virulence factors as well as resistance to antimicrobials used in human therapy, have contributed for pre selection of microorganisms for use as probiotics, one of the limiting factors vancomycin resistance [12].…”

Section: mentioning

confidence: 99%

“…Even knowing that area suffers with runoff of domestic sewage, due to the lack of sanitation in the region, and E. faecalis is related to the presence of fecal contamination, the strains acquisition directly from the study environment. It has been indicated in the selection of potential probiotic bacteria application, since these have mechanisms which confer better competitive conditions [12].…”

Section: Identificationmentioning

confidence: 99%

“…Recently, the use of bacteria from the sea and producers of inhibitory substances against pathogenic bacteria in aqua systems [3] has become more common as an efficacious alternative to ensure the organisms health, minimizing the use of antimicrobials [12]. Table 2 shows that isolates from water and M. guyanensis presented similar results to the antagonistic potential, so that they were capable of inhibiting practically the same culture indicators, except for L. monocytogenes (CERELA) that was inhibited only by one M. guyanensist isolate.…”

Section: Antagonistic Capacitymentioning

confidence: 99%

“…The safe use of E. faecalis resistant as probiotic cultures is important to ensure that these resistant factors will not be transferred [12].…”

Section: Antimicrobial Susceptibility Profilementioning

confidence: 99%

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Antagonistic Activity, Antimicrobial Susceptibility and Potential Virulence Factors of Enterococcus faecalis

Carneiro¹,

Evangelista-Barreto²,

Silveira-Oliveira³

et al. 2015

JLS

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Enterococcus faecalis isolates (87) were phenotypically and genotypically identified and subsequently subjected to the antagonism test and antimicrobial susceptibility. The lipolitic, hemolytic and DNAse activities were identified along with the genes gelE, cylL, cylS, ccf, cpd and cob that, encode virulence determinants. Thirty seven percent of isolates inhibited Listeria monocytogenes (CERELA), Listeria innocuous (CERELA), Staphylococcus aureus (ATCC25932), Lactococcus lactis (IL1403), Micrococcus luteus (ATCC10240) and Enterococcus faecalis (ATCC29212). All strains were sensitive to the ampicillin antibiotic, but 47% were resistant to at least one antimicrobial agent and 6% of isolates presented multidrug resistance. Ninety seven percent of isolates contained the gelE gene, but 77% of these isolates showed gelatinase activity. Presence of cylL and cylS genes was observed in 25% of the isolates, but only 5% presented hemolytic activity. None isolates showed lipase and DNAse activities. Eight percent of isolates contained the ccf gene and 2% showed the presence of the cpd and cob genes. The ability to inhibit pathogenic bacteria, low resistance to antibiotics and absence of virulence factors make some of Enterococcus faecalis strains characterized in the present study promising for exploitation in other applications such as probiotics in aquaculture.

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Section: Antimicrobial Susceptibility Profilementioning

confidence: 94%

Section: mentioning

confidence: 99%

Section: Identificationmentioning

confidence: 99%

Section: Antagonistic Capacitymentioning

confidence: 99%

“…The safe use of E. faecalis resistant as probiotic cultures is important to ensure that these resistant factors will not be transferred [12].…”

Section: Antimicrobial Susceptibility Profilementioning

confidence: 99%