Table 2.
Physical and chemical characterization of the different vinasses.
| Region | “Del Valle” |
“Los Altos” |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vinasse | A | B | C | D | E | F | G | H | I | J |
| Parameter | ||||||||||
| Reducing Sugars (g/L) | 4.25 ± 0.5 | 3.62 ± 1.2 | 3.4 ± 1.0 | 1.79 ± 0.1 | 3.31 ± 0.6 | 3.89 ± 0.1 | 2.55 ± 1.6 | 4.34 ± 0.1 | 2.72 ± 1.4 | 3.06 ± 0.6 |
| Total sugars (g/L) | 7.78 ± 2.9 | 9.31 ± 4.5 | 7.17 ± 1.5 | 5.82 ± 0.2 | 7.54 ± 1.5 | 7.19 ± 0.7 | 7.22 ± 1.6 | 17.15 ± 6.7 | 7.29 ± 0.8 | 8.68 ± 0.3 |
| Total nitrogen (mg/L) | 50.4 ± 20.1 | 482.4 ± 57.2 | 232.6 ± 110.0 | 226.5 ± 124.0 | 439.6 ± 46.3 | 341.8 ± 46.5 | 388.5 ± 138.7 | 312.4 ± 25.0 | 177.8 ± 121.9 | 315.9 ± 205.7 |
| NH4+-nitrogen (mg/L) | 8.8 ± 3.9 | 14.9 ± 0.98 | 8.1 ± 3.23 | 11.47 ± 5 | 16.68 ± 0.58 | 11.42 ± 1.87 | 27.03 ± 9.9 | 7.64 ± 1.47 | 8.77 ± 2.65 | 9.09 ± 6.71 |
| Organic nitrogen (mg/L) | 41.63 ± 16.12 | 467.47 ± 56.18 | 224.48 ± 106.8 | 215 ± 117.99 | 346 ± 63.1 | 330.39 ± 44.64 | 361.445 ± 128 | 304.75 ± 26.48 | 169.01 ± 15.66 | 306.79 ± 199.02 |
| Phenylalanine (μg/L) | <0.01* | <0.01* | <0.01* | 0.026 | <0.01* | 0.011 | 0.026 | <0.01* | 0.013 | 0.019 |
| Valine (μg/L) | 0.039 | <0.01* | 0.022 | 0.041 | <0.01* | <0.01* | 0.016 | <0.01* | <0.01* | <0.01* |
| Leucine (μg/L) | 0.02 | <0.01* | <0.01* | 0.036 | <0.01* | 0.011 | 0.017 | 0.01 | <0.01* | <0.01* |
| Isoleucine (μg/L) | <0.01* | <0.01* | <0.01* | 0.01 | <0.01* | <0.01* | <0.01* | <0.01* | <0.01* | <0.01* |
| C/N ratio | 154.0 | 19.0 | 31.0 | 26.0 | 17.0 | 21.0 | 19.0 | 55.0 | 41.0 | 27.0 |
| COD (g/L) | 68.7 ± 15.6 | 55.7 ± 34.8 | 58.8 ± 0.4 | 53.5 ± 13.6 | 50.0 ± 26.7 | 50.6 ± 32.8 | 59.8 ± 17.4 | 66.2 ± 2.0 | 46.9 ± 17.2 | 69.1 ± 2.0 |
| BOD (g/L) | 23.1 ± 0.8 | 22.7 ± 2.1 | 20.6 ± 3.4 | 18.5 ± 1.3 | 22.8 ± 2.1 | 20.7 ± 1.7 | 28.0 ± 8.6 | 28.6 ± 12.9 | 22.5 ± 6.0 | 29.8 ± 12.9 |
| Total Solids (mg/L) | 33.5 ± 23.4 | 23.7 ± 19.0 | 44.3 ± 13.9 | 17.3 ± 0.1 | 26.5 ± 1.4 | 20.7 ± 10.7 | 38.8 ± 6.7 | 66.7 ± 12.8 | 20.7 ± 12.3 | 56.4 ± 16.7 |
Results are shown as an average with a standard deviation of two replicates from vinasses collected in two different regions at different production periods. Region “Del Valle” (A, B, C, D, E), and the region “Los Altos” (F, G, H, I, J). *0.01 Minimum detection limit.