Table 2.
Biochemical composition of Scenedesmus acutus biomass after 30 or 180 days of wet anaerobic storage
| Experimental condition | Length of storage (days) | Lipids (%, db) | Protein (%, db) | Carbohydrates (%, db) |
|---|---|---|---|---|
| S. acutus—t0 1 | 0 | 10.1 ± 0.2 | 32.1 ± 0.14 | 38.7 ± 0.4 |
| Anaerobic* | 30 | 10.4 ± 0.4 | 33.7 ± 0.86 | 33.0 ± 1.2 |
| 180 | 10.0 ± 0.2 | 32.2 ± 0.14 | 33.5 ± 0.9 | |
| Sulfuric acid (0.5%, db)* | 30 | 10.7 ± 0.4 | 33.7 ± 0.05 | 28.9 ± 0.2 |
| 180 | 10.7 ± 0.2 | 34.4 ± 0.05 | 29.5 ± 0.1 | |
| S. acutus—t0 2 | 0 | 10.0 ± 0.3 | 32.7 ± 0.09 | 33.7 ± 0.8 |
| Glycosidase* | 30 | 12.0 ± 0.3 | 35.9 ± 0.29 | 24.8 ± 0.3 |
| 180 | 11.8 ± 0.2 | 39.5 ± 0.48 | 18.8 ± 0.01 | |
| Glucose oxidase* | 30 | 13.7 ± 0.9 | 38.0 ± 0.05 | 21.8 ± 0.6 |
| 180 | 13.5 ± 0.1 | 41.0 ± 0.09 | 13.9 ± 0.5 |
* Biological replicates (n = 3) were combined to accommodate all analyses. Variation is represented by standard deviation of analytical replicates (lipids, n = 3; protein n = 3; carbohydrates n = 2)
1,2Harvest 1 and 2