Table 5.
The percentage level of glycerol, nitrogen, and reducing sugars usage from the media, finally media pH and level of the COD index reduction after 120 h of cultivation Rhodotorula yeast
| Culture medium | Level of glycerol usage (%) |
Level of nitrogen usage (%) |
Level of reducing sugar usage (%) |
Finally medium pH | Level of COD index reduction (%) |
|---|---|---|---|---|---|
| Rhodotorula glutinis | |||||
| YPD | – | 32.1 ± 3.5 | 90.7 ± 0.1 | 8.7 ± 0.3 | – |
| PW | – | 24.5 ± 5.3 | 75.9 ± 3.4 | 9.3 ± 0.1 | 43.4 ± 5.3 |
| PW+G3% | 97.8 ± 1.1 | 62.1 ± 0.8 | 77.4 ± 6.3 | 8.7 ± 0.1 | 81.0 ± 2.6 |
| PW+G5% | 79.5 ± 3.6 | 61.1 ± 5.4 | 72.2 ± 1.8 | 8.7 ± 0.2 | 77.6 ± 3.5 |
| W+G10% | 39.5 ± 2.7 | 59.8 ± 7.0 | 72.7 ± 4.4 | 8.5 ± 0.2 | 49.1 ± 5.1 |
| Rhodotorula mucilaginosa | |||||
| YPD | – | 19.1 ± 4.6 | 91.5 ± 1.4 | 8.4 ± 0.2 | – |
| PW | – | 28.7 ± 6.7 | 71.6 ± 2.3 | 9.5 ± 0.1 | 49.0 ± 6.6 |
| PW+G3% | 98.0 ± 1.3 | 66.4 ± 2.2 | 72.6 ± 3.6 | 8.7 ± 0.2 | 83.2 ± 1.1 |
| PW+G5% | 91.9 ± 4.1 | 67.5 ± 3.3 | 73.9 ± 3.2 | 8.6 ± 0.2 | 82.6 ± 1.2 |
| PW+G10% | 41.1 ± 1.8 | 63.0 ± 6.1 | 74.9 ± 1.7 | 8.6 ± 0.1 | 54.7 ± 3.6 |
| Rhodotorula gracilis | |||||
| YPD | – | 33.6 ± 4.8 | 90.3 ± 1.8 | 8.5 ± 0.2 | – |
| PW | – | 32.1 ± 4.5 | 78.5 ± 2.1 | 9.4 ± 0.2 | 39.5 ± 6.6 |
| PW+G3% | 99.3 ± 0.2 | 65.0 ± 2.6 | 78.1 ± 2.4 | 8.4 ± 0.1 | 81.8 ± 1.3 |
| PW+G5% | 62.9 ± 2.7 | 52.5 ± 4.6 | 72.6 ± 3.5 | 8.4 ± 0.2 | 63.1 ± 3.6 |