Sensitivity to Enterocins of Biogenic Amine-Producing Faecal Enterococci from Ostriches and Pheasants
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
28342109
DOI
10.1007/s12602-017-9272-z
PII: 10.1007/s12602-017-9272-z
Knihovny.cz E-resources
- Keywords
- Biogenic amines, Enterocins, Enterococci, Poultry, Production, Sensitivity,
- MeSH
- Biogenic Amines biosynthesis MeSH
- Enterococcus classification isolation & purification MeSH
- Feces chemistry microbiology MeSH
- Phenethylamines metabolism MeSH
- Galliformes microbiology MeSH
- Bridged-Ring Compounds metabolism MeSH
- Spermidine biosynthesis MeSH
- Spermine biosynthesis MeSH
- Struthioniformes microbiology MeSH
- Tyramine biosynthesis MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Biogenic Amines MeSH
- enterocin MeSH Browser
- Phenethylamines MeSH
- Bridged-Ring Compounds MeSH
- Spermidine MeSH
- Spermine MeSH
- Tyramine MeSH
Enterococci are widespread bacteria forming the third largest genus among lactic acid bacteria. Some possess probiotic properties or they can produce beneficial proteinaceous antimicrobial substances called enterocins. On the other hand, some enterococci produce biogenic amines (BAs), so this study is focused on the sensitivity to enterocins of biogenic amine-producing faecal enterococci from ostriches and pheasants. Altogether, 60 enterococci isolated from faeces of ostriches and pheasants were tested for production of BAs. This target of the identified enterococci involved 46 strains selected from 140 ostriches and 17 from 60 pheasants involving the species Enterococcus hirae, E. faecium, E. faecalis, and E. mundtii. Although BAs histamine, cadaverine, putrescine, and tryptamine were not detected in the enterococci tested, in general high BA production by the tested enterococci was noted. The species E. hirae formed the majority of the enterococcal strains from ostrichs faeces (34 strains). High production of tyramine (TYM) was measured with an average amount of 958.16 ± 28.18 mg/ml. Among the enterococci from pheasants, the highest was production of TYM compared to phenylethylamine, spermidine, and spermine. Enterococci featured high BA production; however, they were sensitive to seven enterocins with inhibition activity ranging from 100 up to 25,600 AU/ml.
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