Table 1.
Chemical composition of the supplied feedstocks maize silage (MS) and sugar beet silage (SBS) as well as the ratio of each compound in comparison of MS and SBS
| Parameter | Unit | MS | SBS | MS:SBS |
|---|---|---|---|---|
| TS | (% FM) | 27 | 14 | 2:1 |
| VS | (% TS) | 96 | 95 | 1:1 |
| Lignin | (g kgFM−1) | 6 | 4 × 10−2 | 142:1 |
| Cellulose | (g kgFM−1) | 58 | 5 | 12:1 |
| Hemicellulose | (g kgFM−1) | 49 | 4 | 14:1 |
| Starch | (g kgFM−1) | 0.8 | 0.2 | 4:1 |
| Sugar | (g kgFM−1) | 0.01 | 0.17 | 1:19 |
| Crude fat | (g kgFM−1) | 1.0 × 10−4 | 5.3 × 10−6 | 20:1 |
| Crude protein | (g kgFM−1) | 20 | 7 | 3:1 |
| TKN | (g kgFM−1) | 3.2 | 1.3 | 2.5:1 |
| NH4+-N | (g kgFM−1) | 0.06 | 0.11 | 1:2 |
| Ethanol | (g kgFM−1) | 2 | 24 | 1:12 |
| Acetate | (g kgFM−1) | 5 | 10 | 1:2 |
Values are given as single measurements of a composite sample. TS = total solids, FM = fresh mass, VS = volatile solids, TKN = total Kjeldahl nitrogen, NH4+-N = ammonium nitrogen.