Evidence map›Paper›PMID 25914676›Full record

ArticleFrontiers in microbiology2015

Tyrosine decarboxylase activity of enterococci grown in media with different nutritional potential: tyramine and 2-phenylethylamine accumulation and tyrDC gene expression.

Eleonora Bargossi, Giulia Tabanelli, Chiara Montanari, Rosalba Lanciotti, Veronica Gatto, Fausto Gardini, Sandra Torriani

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Article in Frontiers in microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

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0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Molecular Identification and Biogenic Amine Production Capacity ofInternational journal of molecular sciences · 2025
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  2. An Ultrasound-AssistedFood science & nutrition · 2025
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  4. Incorporating bay leaf extract (Food science & nutrition · 2024
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  13. Phenotypic Diversity ofFrontiers in microbiology · 2018
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  15. Article
  16. Article
  17. Review
  18. Article
4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Eleonora BargossiDepartment of Agricultural and Food Sciences, University of Bologna Cesena, Italy.
Giulia TabanelliInterdepartmental Center for Industrial Agri-Food Research, University of Bologna Cesena, Italy.
Chiara MontanariInterdepartmental Center for Industrial Agri-Food Research, University of Bologna Cesena, Italy.
Rosalba LanciottiDepartment of Agricultural and Food Sciences, University of Bologna Cesena, Italy.
Veronica GattoDepartment of Biotechnology, University of Verona Verona, Italy.
Fausto GardiniDepartment of Agricultural and Food Sciences, University of Bologna Cesena, Italy ; Interdepartmental Center for Industrial Agri-Food Research, University of Bologna Cesena, Italy.
Sandra TorrianiDepartment of Biotechnology, University of Verona Verona, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ability to accumulate tyramine and 2-phenylethylamine by two strains of Enterococcus faecalis and two strains Enterococcus faecium was evaluated in two cultural media added or not with tyrosine. All the enterococcal strains possessed a tyrosine decarboxylase (tyrDC) which determined tyramine accumulation in all the conditions tested, independently on the addition of high concentration of free tyrosine. Enterococci differed in rate and level of biogenic amines accumulation. E. faecalis EF37 and E. faecium FC12 produced tyramine in high amount since the exponential growth phase, while 2-phenylethylamine was accumulated when tyrosine was depleted. E. faecium FC12 and E. faecalis ATCC 29212 showed a slower tyraminogenic activity which took place mainly in the stationary phase up to 72 h of incubation. Moreover, E. faecalis ATCC 29212 produced 2-phenylethylamine only in the media without tyrosine added. In BHI added or not with tyrosine the tyrDC gene expression level differed considerably depending on the strains and the growth phase. In particular, the tyrDC gene expression was high during the exponential phase in rich medium for all the strains and subsequently decreased except for E. faecium FC12. Even if tyrDC presence is common among enterococci, this study underlines the extremely variable decarboxylating potential of strains belonging to the same species, suggesting strain-dependent implications in food safety.

Indexed as

2-phenylethylamineenterococciintraspecific variabilitytyraminetyrDC gene expression

Identifiers

PMID25914676
PMCPMC4392317

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