| Yeast isolate | Pb tolerance level (mg) |
| UJF 502 (C. catenulata) | 2.5 |
| UJF 1441 (T. montevideense) | 5.0 |
| BY4742 (S. cerevisiae S | 1.0 |
| BG-1 (Industrial strain) | 1.0 |
| PE-2 (Industrial strain) | 2.5 |
| CAT-1 (Industrial strain) | 2.5 |