Search for LT-II and STb DNA Sequences Among Escherichia coli Isolated from Bovine Meat Products by Colony Hybridization.
J Food Prot
; 57(8): 734-736, 1994 Aug.
Article
in En
| MEDLINE
| ID: mdl-31121761
ABSTRACT
A total of 1,066 Escherichia coli colonies isolated from 105 raw bovine meat samples purchased at supermarkets in Rio de Janeiro were submitted to hybridization assays with gene probes for LT-II and STb enterotoxins. Five colonies comprising four different E. coli strains isolated from four pieces of beef, two samples of ground beef (5.7%) and two hamburger patties (5.7%) hybridized with the LT-II probe, while no hybridization occurred with the STb probe. Expression of LT-II enterotoxin using the Y1 adrenal cell assay was verified in two of four E. coli strains. A serotype diversity existed among LT-II E. coli strains.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Food Prot
Year:
1994
Document type:
Article
Affiliation country:
Brazil