Table 4 Microbial contaminations (aerobic bacteria, coliform, Escherichia coli, and Vibrio cholerae) of the fishery products and the environmental samples collected from the fishery auction market A and B in fall (September)
Samples | Time | Bacteria | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Aerobic bacteria (CFU/g or CFU/mL or CFU/100 cm2) | Coliform (CFU/g or CFU/mL or CFU/100 cm2) | E. coli (CFU/g or CFU/mL or CFU/100 cm2) | V. cholerae (MPN/100 g or MPN/100 mL or MPN/100 cm2) | ||||||||
V. cholerae O1 | V. cholerae non-O1 | ||||||||||
Market A | Market B | Market A | Market B | Market A | Market B | Market A | Market B | Market A | Market B | ||
Fishery products | |||||||||||
Snail | Before auction | 2.6 × 102 | − | 3.2 × 10 | – | < 15 | – | < 20 | – | 5400 | – |
During auction | 8.4 × 103 | – | 5.9 × 102 | – | < 15 | – | < 20 | – | 130 | – | |
After auction | 2.6 × 10 | – | < 15 | – | < 15 | – | < 20 | – | 20 | – | |
Hairtail | Before auction | – | 6.3 × 104 | – | 1.1 × 103 | – | < 15 | – | < 20 | – | < 20 |
After auction | – | 1.6 × 105 | – | 1.9 × 104 | – | < 15 | – | < 20 | – | 200 | |
Croaker | Before auction | – | 1.9 × 105 | – | 1.2 × 103 | – | < 15 | – | < 20 | – | 40 |
After auction | – | 2.7 × 105 | – | 5.9 × 102 | – | < 15 | – | < 20 | – | 110 | |
Flatfish | Before auction | – | 2.3 × 104 | – | 3.7 × 102 | – | < 15 | – | < 20 | – | < 20 |
After auction | – | 5.8 × 104 | – | 2.0 × 103 | – | < 15 | – | < 20 | – | 20 | |
Pilchard | Before auction | – | 2.9 × 104 | – | 5.2 × 104 | – | < 15 | – | < 20 | – | 45 |
After auction | – | 9.9 × 104 | – | 5.3 × 102 | – | < 15 | – | < 20 | – | < 20 | |
Environmental samples | |||||||||||
Water | 1.3 × 103 | 9.8 × 102 | 1.1 × 103 | 6.0 × 102 | < 15 | < 15 | < 20 | < 20 | < 20 | 20 | |
2.9 × 103 | 1.6 × 103 | 1.1 × 10 | 6.9 × 102 | < 15 | < 15 | < 20 | < 20 | < 20 | < 20 | ||
Ice | 5.5 × 104 | 1.1 × 106 | 3.9 × 10 | 3.3 × 102 | < 15 | < 15 | < 20 | < 20 | < 20 | < 20 | |
Wooden box | 1.8 × 107 | 3.2 × 107 | 5.4 × 105 | < 15 | < 15 | < 15 | < 20 | < 20 | < 20 | < 20 | |
5.8 × 107 | 5.5 × 106 | 3.6 × 105 | 9.6 × 103 | < 15 | < 15 | < 20 | < 20 | < 20 | < 20 | ||
Plastic box | 5.2 × 106 | 1.3 × 108 | 2.0 × 104 | 3.4 × 104 | < 15 | < 15 | < 20 | < 20 | < 20 | 20 | |
9.6 × 106 | 6.0 × 107 | 8.2 × 103 | 3.4 × 103 | < 15 | < 15 | < 20 | < 20 | < 20 | < 20 | ||