Table 2.
Average single screw extruder (Wenger X-115) processing conditions for dietary treatments containing selected ancient grains
| Treatment | |||||
|---|---|---|---|---|---|
| Measurement | CON | AM | WPM | QU | OG |
| Raw material | |||||
| Dry recipe density, kg/m3 | 601.0 | 536.0 | 568.0 | 564.0 | 495.0 |
| Dry recipe rate, kg/h | 495.0 | 502.0 | 487.0 | 490.0 | 482.0 |
| Feeder speed, rpm | 45.3 | 45.5 | 45.6 | 42.0 | 53.6 |
| Preconditioner | |||||
| Mixing intensity, % | 30.0 | 30.0 | 30.0 | 30.0 | 30.0 |
| Large side speed, rpm | 263.0 | 263.0 | 263.0 | 263.0 | 263.0 |
| Small side speed, rpm | 377.0 | 377.0 | 377.0 | 377.0 | 377.0 |
| Cylinder steam, kg/h | 40.1 | 40.1 | 40.1 | 40.0 | 40.0 |
| Cylinder water, kg/h | 80.3 | 79.9 | 89.6 | 80.3 | 80.2 |
| Cylinder discharge temp, °C | 83.0 | 81.0 | 82.0 | 80.0 | 78.0 |
| Extruder | |||||
| Speed, rpm | 370.0 | 430.0 | 475.0 | 500.0 | 520.0 |
| Motor load, % | 56.4 | 50.8 | 45.4 | 64.7 | 50.8 |
| Motor power, kW | 24.4 | 24.5 | 22.3 | 36.6 | 27.9 |
| Knife speed, rpm | 1,201.0 | 1,200.0 | 1,500.0 | 1,501.0 | 1,501.0 |
| Zone 1 temp, °C | 90.0 | 87.0 | 87.0 | 92.0 | 91.0 |
| Zone 2 temp, °C | 95.0 | 95.0 | 95.0 | 96.0 | 95.0 |
| Zone 3 temp, °C | 100.0 | 100.0 | 99.0 | 111.0 | 101.0 |
| Zone 4 temp, °C | 108.0 | 106.0 | 108.0 | 117.0 | 103.0 |
| Zone 5 temp, °C | 112.0 | 110.0 | 110.0 | 108.0 | 111.0 |
| Conehead pressure, KPA | 209.0 | 219.0 | 246.0 | 250.0 | 328.0 |
| Specific mechanical energy | 49.2 | 48.8 | 45.9 | 74.6 | 58.0 |
| Dryer | |||||
| Zone 1 temp, °C | 133.0 | 129.0 | 135.0 | 135.0 | 134.0 |
| Zone 2 temp, °C | 68.0 | 66.0 | 72.0 | 71.0 | 72.0 |
| Zone 3 temp, °C | 99.0 | 91.0 | 98.0 | 94.0 | 98.0 |
| Retention time—pass 1, min | 21.0 | 20.0 | 20.0 | 20.0 | 20.0 |
| Retention time—pass 2, min | 9.0 | 8.0 | 6.0 | 6.0 | 8.0 |
| Exhaust 1 temp, °C | 81.0 | 74.0 | 81.0 | 79.0 | 81.0 |
| Final product | |||||
| Extruder discharge density | 396.0 | 404.0 | 396.0 | 396.0 | 400.0 |