Numerical taxonomy of an "atypical" population of Gram-positive cocci isolated from freshly dressed lamb carcasses.

  1. Sierra, M. 1
  2. González Fandos, M.E. 1
  3. García, M.C. 1
  4. Garcı́a, María Luisa . 1
  5. Moreno, B. 1
  1. 1 Universidad de León
    info

    Universidad de León

    León, España

    ROR https://ror.org/02tzt0b78

Revista:
International Journal of Food Microbiology

ISSN: 0168-1605

Año de publicación: 1995

Volumen: 24

Número: 24

Páginas: 363-373

Tipo: Artículo

PMID: 7710913 SCOPUS: 2-s2.0-0028871181 GOOGLE SCHOLAR

Otras publicaciones en: International Journal of Food Microbiology

Repositorio institucional: lock_openAcceso abierto Editor

Resumen

One hundred Gram-positive, catalase-positive strains were isolated from freshly dressed lamb carcasses. They were randomly selected from a non-selective medium and tested for 75 characters. Only nine cultures could be identified by conventional methods. A numerical taxonomic study was conducted on the whole population and 25 reference strains. At the 80% similarity level (Ssm), ten clusters were formed. Five of them were entirely composed of reference strains. Phena V and VIII contained seven isolates and two reference strains of Micrococcus. Phena VI (six unidentified isolates), VII (nine staphylococi) and IX (69 unidentified isolates) were more related to M. kristinae than to the remaining reference strains. Properties with possible implications in meat spoilage were: strong lipolytic activity (76%), anaerobic growth (85%), tolerance to 15% ( w v) NaCl (95%) and ability to grow at 15 °C (95%) and 4 °C (26%). © 1995.