The occurrence of enterotoxigenic isolates of B. cereus in foodstuffs
| Autor: | Josef Brychta, Jiří Smola, Petr Pipek, Jaroslav Ondráček, Vladimír Bednář, Alois Čížek, Tomáš Brychta |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Czech Journal of Food Sciences, Vol 27, Iss 4, Pp 284-292 (2009) |
| Druh dokumentu: | article |
| ISSN: | 1212-1800 1805-9317 |
| DOI: | 10.17221/84/2009-CJFS |
| Popis: | Enterotoxigenic Bacillus cereus was detected in a variety of meat stuffs (36), ready-to-cook products (5), and swabs (7). The bacterial colonies isolated from PEMBA agar were identified as B. cereus. The 85 isolates were examined for the enterotoxin production using both TECRA-VIA and BCET-RPLA kits (ELISA - 47, RPLA - 38). Thirty two isolates (66%) were positive for enterotoxin using the ELISA test while only 15 isolates (39%) gave positive results in the RPLA test system. In total, 178 (91.8%) and 164 (84%) of the strains isolated in our laboratory (from various foods) were enterotoxigenic as determined using TECRA-VIA and BCET-RPLA, respectively. Parallel enterotoxin positive results obtained using both tests were demonstrated in only 9 isolates from 19 assessed (47.4%). Coincidental negative results from both kits were established for 3 isolates (15.8%) only. The isolates of B.cereus from meat were resistant to cephalothin (57%), clindamycin (14%), oxytetracycline (14%), and erythromycin (7%). The isolates from swabs were resistant to cephalothin (83%), erythromycin (16%), clindamycin (16%) and enrofloxacin (16%). |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|