Phenotypical characteristics of Shiga-like toxin Escherichia coli isolated from sheep dairy products |
| |
Authors: | Caro I Mateo J García-Armesto M R |
| |
Institution: | Research Centre of Food Science and Technology, University of Hidalgo State, Tulancingo, Hidalgo, México. dhticc@unileon.es |
| |
Abstract: | AIMS: To analyse phenotypical characteristics of Shiga toxin-producing Escherichia coli (STEC) strains from ovine origin. METHODS AND RESULTS: A total of 13 STEC strains (eight O157 and five non-O157) isolated from sheep dairy products were used in this study. Biochemical traits, motility, haemolytic activity, resistance to tellurite-cefixime, maximum growth temperature and antibiotic resistance were determined. The STEC strains were grouped into nine biochemical and physiological biotypes (five for the O157 and four for the non-O157 strains). All STEC strains showed resistance to bacitracin, cloxacilin, penicillin and tylosin. CONCLUSIONS: Different biotypes and antibiotic resistance patterns of STEC isolated from sheep dairy products were observed. SIGNIFICANCE AND IMPACT OF THE STUDY: This work will be a contribution to the better characterization of STEC isolated from sheep dairy products, which have, to date, been scarcely studied, and to the better understanding of the risks associated with its consumption. |
| |
Keywords: | ewe's milk sheep dairy products STEC antibiotic resistance STEC characteristics |
本文献已被 PubMed 等数据库收录! |
|