Antibiotic resistance and plasmid DNA contents of Streptococcus thermophilus strains isolated from Turkish yogurts


Aslim B., Beyatli Y.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, vol.28, no.2, pp.257-263, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 2
  • Publication Date: 2004
  • Journal Name: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.257-263
  • Gazi University Affiliated: Yes

Abstract

Thirty-four Streptococcus thermophilus strains were isolated from yogurt samples obtained from various villages in different regions of Turkey. These strains were examined for their antibiotic resistance patterns and plasmid carriage. The susceptibility of the isolates to 8 antibiotics (vancomycin, tetracycline, chloramphenicol, erythromycin, cephalothin, ampicillin-sulbactam, gentamicin and penicillin G) was determined by the disk diffusion method. Most strains of S. thermophilus were resistant to gentamicin (79%) and penicillin G (64%) and susceptible to chloramphenicol (94%) and tetracycline (88%).