| Nitrogen sources | Strain 218 | Strain 339 | Strain 340 |
| Mycelia dry weight g/L* | |||
| Organic | |||
| Yeast Extract | 6.12a | 5.61b | 6.22a |
| Peptone | 5.24b | 4.47c | 5.24b |
| Corn Steep Liquor | 2.85de | 3.02d | 2.59e |
| Urea | 0.63i | 0.95hi | 1.06gh |
| Inorganic | |||
| (NH4)2SO4 | 2.17f | 0.57i | 2.07f |
| NH4NO3 | 1.35g | 0.91j | 1.38g |
| KNO3 | 0.057j | 0.07hi | 0.06j |
| KNO2 | 0.00j | 0.00j | 0.00j |
| Control | 0.00j | 0.00j | 0.00j |