TABLE 1.
Ochratoxin A production by Aspergillus isolates in two liquid media
| Species and no. of isolates | Source | Location | Ochratoxin productiona (μg/ml) on:
|
|
|---|---|---|---|---|
| PDB | YES | |||
| A. ochraceus | ||||
| 1 | NRRL 398T | − | − | |
| 1 | ATCC 22947 | 0.04 ± 0.05 | 1.6 ± 2.2 | |
| 1 | ATTC 91619 | − | − | |
| 20 | Tree nuts | California | − | − |
| 7 | Cottonseed | California | − | − |
| 7 | Fig | California | − | − |
| 1 | Soil | California | − | − |
| 1 | Hazelnut | Washington | − | − |
| 1 | Walnut inflorescence | France | − | − |
| A. melleus | ||||
| 1 | NRRL 5103T | India | − | − |
| 8 | Tree nuts | California | − | − |
| 7 | Fig | California | − | − |
| 1 | Hazelnut | Washington | − | − |
| A. alliaceus | ||||
| 1 | NRRL 4181T | Australia | − | − |
| 1 | NRRL 315 | Blister beetle | 2.5 | 8.9 |
| 6 | Fig | California | 4.2 ± 1.9 | 11 ± 10 |
| A. elegans | ||||
| 4 | Tree nuts | California | − | − |
| A. sclerotiorum | ||||
| 1 | NRRL 4901 | − | − | |
| 2 | Fig | California | − | − |
a
Each isolate was grown at least once in PDB and once in YES. The test was repeated two to four times for isolates that produced detectable levels of ochratoxin for confirmation.