Table 2.
Composition of raw wheat straw and wheat meal, in % of DM, including breakdown of the starch-free residue.
| Component | Percentage of DM, mean ± SD | |
|---|---|---|
| Wheat meal | Raw wheat straw | |
| Starch | 72.7 | -- |
| SFRa | 24.3 | -- |
| % of SFRa | ||
| Glucan | 17.5 ± 0.1 | 38.8 ± 0.5 |
| Mannan | BDL | 1.7 ± 0.2 |
| Xylan | 14.4 ± 0.0 | 22.2 ± 0.3 |
| Galactan | 1.6 ± 0.0 | 2.7 ± 0.1 |
| Arabinan | 8.5 ± 0.0 | 4.7 ± 0.1 |
| ASLb | 3.1 ± 0.0 | 2.4 ± 0.0 |
| AILc | 15.1 ± 3.0 | 16.1 ± 0.1 |
| Total ash | 2.3 ± 0.3 | 5.8 ± 0.1 |
| AIAd | BDL | 2.4 ± 0.4 |
Where standard deviations are presented, these were calculated from duplicate measurements on the same sample.
aStarch-free residue.
bAcid-soluble lignin.
cAcid-insoluble lignin.
dAcid-insoluble ash.
BDL = below detection limit; DM = dry matter.