Table 3 Results for the microbiological screening in the hotel canteen by sample material and detected microorganisms
Analyzed material | Bacillus cereus | Escherichia coli | Enterococci | Further potentially harmful species |
|---|---|---|---|---|
Cut papaya fruit from the breakfast buffet | Negative | Negative | Positive | Pseudomonas aeruginosa |
Cut watermelon from the breakfast buffet | Negative | Negative | Positive | Enterobacter cloacae ssp. cloacae |
Tomatoes in the hotel kitchen | Positive | Negative | Positive | ESBL-positive Klebsiella oxytoca, Acinetobacter spp. |
Apples in the hotel kitchen | Positive | Negative | Negative | Enterobacter cloacae ssp. cloacae |
Cut cabbage in the hotel kitchen | Negative | Negative | Negative | Pseudomonas aeruginosa, Klebsiella pneumoniae |
Handle of the big refrigerator in the hotel kitchen | Negative | Negative | Positive | Aeromonas hydrophila/caviae |
Cutting machine of the hotel kitchen | Negative | Negative | Positive | Delftia acidovorans, Acinetobacter pittii |
Cutting plate of the hotel kitchen | Positive | Negative | Positive | Enterobacter cloacae ssp. cloacae, Klebsiella pneumoniae |
Flour from a working place in the bakery | Negative | Negative | Negative | Klebsiella oxytoca, Enterobacter cloacae ssp. cloacae |
Red chili sauce from the lunch buffet | Negative | Negative | Negative | Enterobacter cloacae ssp. cloacae, Acinetobacter ursingii |
White rice from the lunch buffet | Negative | Negative | Negative | Pantoea agglomerans |
Cut carrots from the lunch buffet | Negative | Negative | Positive | Acinetobacter pittii, Aeromonas hydrophila/caviae, Kluyvera cryocrescens |
Cold chicken salad from lunch | Negative | Positive | Positive | Aeromonas hydrophila/caviae, Enterobacter ludwigii |
Cake as a dessert from lunch | Negative | Negative | Negative | Klebsiella pneumoniae, Enterobacter cloacae ssp. cloacae, Klebsiella oxytoca |
Paprika salad from the dinner buffet | Negative | Positive | Positive | Pseudomonas aeruginosa, Proteus spp. |
Mayonnaise salad from the dinner buffet | Negative | Negative | Positive | Pseudomonas aeruginosa, Proteus spp. |
Olives from the dinner buffet | Negative | Negative | Positive | Bacillus cereus var. mycoides, Proteus spp. |