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Molecular Characterization of Bacillus cereus Toxigenic Strains Isolated from Different Food Matrices in Jordan.
MedLine Citation:
PMID:  21714637     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Background: Bacillus cereus is increasingly recognized as one of the causative agents of food poisoning in different parts of the world. Methods: In this study, molecular characterization of B. cereus toxigenic strains isolated from food in Jordan was performed. A total of 202 food samples were collected from local markets and restaurants. Results and Discussion: B. cereus was found in 23.3% (47) of the food samples. The hemolytic enterotoxin hblA, hblC, and hblD were detected in 40.4%, 36.5%, and 75% of the isolates, respectively. Combination of all three hbl genes was detected in 19 isolates (36.5%). The nonhemolytic enterotoxin nheA, nheB, and nheC were detected in 61.5%, 92.3%, and 92.3% of the isolates, respectively. All three nhe genes were detected in 27 isolates (51.9%). The six enterotoxin genes (hemolysin BL [HBL] and NHE complexes) were detected in 25% of isolates. The cytK gene was detected in 53.8% of B. cereus isolates, whereas the bceT gene was detected in 69.2%. Only four emetic toxin-producing isolates were found to carry all the three genes of NHE complex, but none of the HBL complex ones. The B. cereus Enterotoxin-Reversed Passive Latex Agglutination assay results were strongly correlated with molecular detection of the L(2) part of the HBL complex (p≤0.01). This study demonstrated the occurrence of potentially enterotoxic and emetic toxic B. cereus isolates in the food samples analyzed from Jordan.
Authors:
Raymond Batchoun; Aseel I Al-Sha'er; Omar F Khabour
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-29
Journal Detail:
Title:  Foodborne pathogens and disease     Volume:  -     ISSN:  1556-7125     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101120121     Medline TA:  Foodborne Pathog Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Medical Laboratory Sciences, Jordan University of Science and Technology , Irbid, Jordan .
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