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Virulence, antibiotic resistance and biogenic amines of bacteriocinogenic lactococci and enterococci isolated from goat milk

Perin, Luana Martins ; Miranda, Rodrigo Otávio ; Todorov, Svetoslav Dimitrov ; Franco, Bernadette Dora Gombossy de Melo ; Nero, Luís Augusto

International journal of food microbiology, 2014-08, Vol.185, p.121-126 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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Título:
Virulence, antibiotic resistance and biogenic amines of bacteriocinogenic lactococci and enterococci isolated from goat milk
Autor: Perin, Luana Martins ; Miranda, Rodrigo Otávio ; Todorov, Svetoslav Dimitrov ; Franco, Bernadette Dora Gombossy de Melo ; Nero, Luís Augusto
Assuntos: Animals ; Antibiotic resistance ; Bacteria ; Bacteriocins ; Biogenic amines ; Biogenic Amines - analysis ; Biological and medical sciences ; Cylas ; Drug Resistance, Microbial - genetics ; Enterococcus ; Enterococcus - chemistry ; Enterococcus - genetics ; Enterococcus - isolation & purification ; Enterococcus - pathogenicity ; Food industries ; Food microbiology ; Fundamental and applied biological sciences. Psychology ; Gene Expression Profiling ; Goat milk ; Goats ; Lactic acid bacteria ; Lactococcus ; Lactococcus - chemistry ; Lactococcus - genetics ; Lactococcus - isolation & purification ; Lactococcus - pathogenicity ; Milk - microbiology ; Polymerase Chain Reaction ; Virulence ; Virulence Factors - genetics
É parte de: International journal of food microbiology, 2014-08, Vol.185, p.121-126
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: The present study aimed to investigate the virulence, antibiotic resistance and biogenic amine production in bacteriocinogenic lactococci and enterococci isolated from goat milk in order to evaluate their safety. Twenty-nine bacteriocinogenic lactic acid bacteria (LAB: 11 Lactococcus spp., and 18 Enterococcus spp.) isolated from raw goat milk were selected and subjected to PCR to identify gelE, cylA, hyl, asa1, esp, efaA, ace, vanA, vanB, hdc1, hdc2, tdc and odc genes. The expression of virulence factors (gelatinase, hemolysis, lipase, DNAse, tyramine, histamine, putrescine) in different incubation temperatures was assessed by phenotypic methods, as well as the resistance to vancomycin, gentamicin, chloramphenicol, ampicillin and rifampicin (using Etest®). The tested isolates presented distinct combinations of virulence related genes, but not necessarily the expression of such factors. The relevance of identifying virulence-related genes in bacteriocinogenic LAB was highlighted, demanding for care in their usage as starter cultures or biopreservatives due to the possibility of horizontal gene transfer to other bacteria in food systems. •Description of virulence potential and activity of bacteriocinogenic lactic bacteria from goat milk•Demonstration of production of virulence factors at distinct conditions•Description of virulence markers in Lactococcus strains
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

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Virulence, antibiotic resistance and biogenic amines of bacteriocinogenic lactococci and enterococci isolated from goat milk

Perin, Luana Martins ; Miranda, Rodrigo Otávio ; Todorov, Svetoslav Dimitrov ; Franco, Bernadette Dora Gombossy de Melo ; Nero, Luís Augusto

Amsterdam: Elsevier B.V

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