Social Links

Follow on Facebook Follow on TwitterFollow EiR on PinterestFollow EiR on Instagram

Xpert Access


Login To Get Involved!

Forgot your username?

Forgot your password?


Join Us At EiR Now!

DNRS Roof Banner


DNRS Interactive DVD Series & Seminars

Antibiotic susceptibility of Bifidobacterium thermophilum and Bifidobacterium pseudolongum isolates




J Food Prot. 2007 Jan;70(1):119-24.


Antibiotic susceptibility of Bifidobacterium thermophilum and Bifidobacterium pseudolongum isolates from animal sources.


Mayrhofer S, Domig KJ, Amtmann E, Van Hoek AH, Petersson A, Mair C, Mayer HK, Kneifel W. BOKU-University of Natural Resources and Applied Life Sciences, Department of Food Science and Technology, Division of Food Microbiology and Hygiene, Gregor Mendel Strafle 33, A-1180 Vienna, Austria.


The widespread use of antimicrobial substances has led to resistant populations of microorganisms in several ecosystems. In animal husbandry, the application of antibiotics has contributed to resistance development in pathogenic and commensal bacteria. These strains or their resistance genes can be spread along several ecological routes, including the food chain. Antibiotic resistance is important in terms of the safety of industrial strains, such as probiotics for food and feed. Bifidobacterium thermophilum and Bifidobacterium pseudolongum are known to comprise the major part of the bifidobacterial microbiota in the gut and feces of cattle and pigs. In this study, the antimicrobial susceptibility in bifidobacterial isolates of these species was investigated. Isolates from the beef and pork production chain were identified and typed to strain level, and the antimicrobial susceptibility level was tested to a set of antibiotics. Isolates with low susceptibility levels were screened by PCR for already described resistance genes. Strains atypically resistant to clindamycin, erythromycin, and tetracycline were determined. The resistance genes tet(O), tet(W), and erm(X) were detected in the bifidobacterial species that were examined.


PMID: 17265870 [PubMed - in process]




Related Articles:


Home Testing & Sanitizer:







  • No comments found

Leave your comments

Post comment as a guest

0 Character restriction
Your text should be more than 25 characters
Your comments are subjected to administrator's moderation.
terms and condition.

Adsense Responsive BottomBanner