Table 2.
Numbers of positive samples for Listeria monocytogenes contamination of raw mushrooms
| Mushrooms | No. of positive samples | ||
|---|---|---|---|
| SAa | PCRa | 16Sa | |
| Flammulina velutipes | 25/50 | 5/25 | 0/5 |
| Pleurotus ostreatus | 7/50 | 0/7 | –/– |
| Pleurotus eryngii | 0/50 | –/–b | –/– |
| Agaricus bisporus | 0/50 | –/– | –/– |
| Total | 32/200 | 5/32 | 0/5 |
aSA, isolation methods using selective agar; PCR, identification methods using conventional PCR method; 16S, identification methods using 16S rRNA sequencing method. Numbers of positive sample in conventional PCR method among positive samples in selective agar
bNot tested