Abstract：Objective To investigate the food contamination caused by foodborne pathogens. Methods637 food samples of 11 representative kinds were collected at random from supermarkets, market, store and catering service place. Salmonella, Staphylococcus aureus, Vibrio parahaemolyticus, Listeria monocytogenes , Enterobacter sakazakii, Bacillus cereus and enteropathogenic Escherichia coli were detected from these samples. Then the entertoxins produced by the positive strains were detected and drug resistance of the positive strains were tested. ResultsTotally 60 strains of food-borne pathogens were detected from the 637 samples with a positive rate of 9.42% . The contamination rate of bacillus cereus was the highest (17.05%), and the detection rates of Staphylococcus aureus, Enterobacter sakazakii, Listeria monocytogenes and Salmonella were 5.42%, 1.37%, 0.92% and 0.20%, respectively. No enteropathogenic Escherichia coli and Vibrio parahaemolyticus were detected. The contamination rates of different foods were different(χ2=127.0999,P=0.000). The detection rate of foodborne pathogenic bacteria in restaurant food, bean products and baby foods foodborne pathogenic bacteria is higher (29.41%,21.88% and 17.81%), mainly for staphylococcus aureus and bacillus cereus contamination. 23 strains showed different degree of drug resistance to penicillin, oxacillin, gentamicin, erythromycin, ciprofloxacin, levofloxacin,clindamycin, tetracycline, sulfamethoxazole. Conclusion The investigation showed that the contamination of commercial food caused by pathogens occurred in Huizhou,Staphylococcus aureus and Bacillus cereus bacteria are the main pollution,Salmonella,Listeria monocytogenes and Enterobacter sakazakii also have different degrees of pollution .
2015, Vol. 22 
