Table 4. Comparison of LAMP, RT-PCR, and selective agar method for detection of L. monocytogenes in seafood products
| Inoculation level | LAMP | RT-PCR | Selective agar |
Short necked clam | 100 CFU/25 g | 3/10 | 0/10 | 8/10 |
101 CFU/25 g | 8/10 | 1/10 | 10/10 |
102 CFU/25 g | 10/10 | 9/10 | 10/10 |
103 CFU/25 g | 10/10 | 10/10 | 10/10 |
Flat fish | 100 CFU/25 g | 2/10 | 0/10 | 8/10 |
101 CFU/25 g | 9/10 | 7/10 | 10/10 |
102 CFU/25 g | 10/10 | 10/10 | 10/10 |
103 CFU/25 g | 10/10 | 10/10 | 10/10 |
Salmon | 100 CFU/25 g | 5/10 | 1/10 | 4/10 |
101 CFU/25 g | 10/10 | 4/10 | 10/10 |
102 CFU/25 g | 10/10 | 10/10 | 10/10 |
103 CFU/25 g | 10/10 | 10/10 | 10/10 |
Mussel | 100 CFU/25 g | 5/10 | 2/10 | 5/10 |
101 CFU/25 g | 7/10 | 8/10 | 10/10 |
102 CFU/25 g | 10/10 | 9/10 | 10/10 |
103 CFU/25 g | 10/10 | 10/10 | 10/10 |
Mixed seafoods | 100 CFU/25 g | 3/10 | 1/10 | 8/10 |
101 CFU/25 g | 10/10 | 7/10 | 10/10 |
102 CFU/25 g | 10/10 | 10/10 | 10/10 |
103 CFU/25 g | 10/10 | 10/10 | 10/10 |
Dried pollock | 100 CFU/25 g | 8/10 | 0/10 | 7/10 |
101 CFU/25 g | 9/10 | 3/10 | 10/10 |
102 CFU/25 g | 10/10 | 6/10 | 10/10 |
103 CFU/25 g | 10/10 | 10/10 | 10/10 |