Table 3.
Fermentation kinetics of sheanut cake, expeller and solvent extractions with PEG-6000 in vitro
| Gas production (ml/200 mg DM) | SN-cake | SN- expeller | SN-solvent extracted | SEM | p |
|---|---|---|---|---|---|
| 8 h | 42.0 a | 44.3 b | 45.6 c | 0.56 | 0.0356 |
| With PEG | 52.0 a | 49.0 b | 53.0 c | 1.06 | 0.0426 |
| 24 h | 53.0 a | 57.0 b | 59.0 c | 1.25 | 0.0365 |
| With PEG | 65.0 a | 67.6 b | 69.6 c | 1.05 | 0.0435 |
| Total gas | 23.0 a | 27.0 b | 28.3 c | 1.26 | 0.0365 |
| With PEG | 35.0 a | 37.6 b | 39.3 c | 0.98 | 0.0345 |
| Net gas | 6.00 a | 10.0 b | 11.3 c | 1.96 | 0.0375 |
| With PEG | 18.0 a | 19.6 b | 22.3 c | 0.96 | 0.0356 |
| Tannin bioassay (% increase in gas production) | 200.0 b | 96.0 a | 97.4 a | 3.26 | 0.0423 |
| Methane (ml/200 mg DM) | 1.89 a | 2.86 b | 3.04 c | 0.256 | 0.0365 |
| With PEG | 5.59 a | 7.42 b | 5.37 a | 0.958 | 0.0240 |
| Methane reduction/ml of total gas reduction | 0.301 b | 0.482 c | 0.261 a | 0.001 | 0.0461 |
SN-cake = Sheanut cake; SN-expeller = Sheanut expeller; SN-solvent extracted = Sheanut solvent extracted; PEG = Polyethylene glycol. Means in a row with different superscript differ significantly (p<0.05).