Determination of antibiotic susceptibility and decarboxylase activity of coagulase-negative Staphylococcus and Macrococcus caseolyticus strains isolated from fermented Turkish sausage (sucuk)


GENİŞ B., TUNCER Y.

JOURNAL OF FOOD PROCESSING AND PRESERVATION, cilt.42, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 42 Konu: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1111/jfpp.13329
  • Dergi Adı: JOURNAL OF FOOD PROCESSING AND PRESERVATION

Özet

The aim of this research was to detect antibiotic susceptibility patterns and amino acid decarboxylase activity of 61 presumptive coagulase-negative Staphylococcus (CNS) strains from the Turkish dry fermented sausage (sucuk). The presumptive CNS strains were identified at species levels as 21 S. saprophyticus, 16 S. epidermidis, 10 Macrococcus caseolyticus, 4 S. xylosus, 3 S. sciuri, 2 S. hominis, 2 S. warneri, 1 S. cohnii, 1 S. pasteuri, and 1 S. vitulinus by 16S rDNA sequence analysis. S. saprophyticus and S. epidermidis species were found highly resistant to antibiotics than other species. In addition, most of the CNS and M. caseolyticus strains showed multiple antibiotic resistance profiles. None of the CNS and M. caseolyticus strains did not decarboxylate histidine, lysine, or ornithine, but only three CNS strains produced tyramine from tyrosine. A 100% correlation was found between the presence of tdc gene and tyramine production in tyraminogenic strains.