Table 1.
Physical and milling properties of durum wheat samples fractionated based on kernel size (set I).
| Sample Description | Grade | Wheat Protein (%) | TW (kg/hL) | TKW (g) | Wheat Ash (%) | Semolina Ash (%) | Semolina Yield (%) | Total Milling Yield (%) | Granule Ash Score (%) | Semolina Size Distribution (%) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <150 µm | 150 < 250 µm | >250 µm | ||||||||||
| Unsorted Sample | 1 | 15.1c | 80.9b | 37.7c | 1.48d | 0.70c | 65.8bc | 74.1b | 65.8b | 6.9d | 25.4b | 67.7b |
| >no.8 a | 2 b | 14.1d | 82.6a | 61.9a | 1.52c | 0.67d | 67.9a | 76.5a | 71.4a | 4.7e | 25.4b | 70.0a |
| >no.7 | 1 | 14.0d | 82.6a | 47.4b | 1.46d | 0.66d | 66.4b | 74.2b | 70.7a | 6.5d | 25.6b | 67.9b |
| >no.6 | 1 | 15.2c | 81.1b | 35.8d | 1.49d | 0.71c | 65.2c | 73.1c | 65.2b | 8.0c | 25.4b | 66.6c |
| >no.5 | 3 c | 17.1b | 78.3c | 27.8e | 1.61b | 0.80b | 62.5d | 70.2d | 54.7c | 11.2b | 25.7b | 63.1d |
| <no.5 | 5 d | 18.6a | 73.5d | 19.3f | 1.86a | 0.95a | 59.8e | 67.5e | 39.1d | 13.0a | 26.6a | 60.4e |
| F Value | 2226.6 **** | 4797.1 **** | 12,482.5 **** | 480.0 **** | 525.7 **** | 302.2 **** | 477.1 **** | 5232.7 **** | 1749.9 **** | 34.4 *** | 701.7 **** | |
a–e, Mean values followed by same letter in the same column are not significantly different (p ≥ 0.05); ***, ****, indicate F value is significant at p < 0.001, 0.0001, respectively; TW, test weight; TKW, thousand kernel weight; a number of slotted sieves, aperture of no.5, 6, 7 and 8 slotted sieve equals to 1.98, 2.38, 2.78 and 3.18 mm, respectively; b, Sample was downgraded due to light frost damage; c, Sample was downgraded due to low test weight; d, Sample was downgraded due to high level of shrunken kernels (% of kernels passed through 41/2 slotted sieve)