Table 5.
Water absorption index (WAI) and water soluble index (WSI) of flours obtained from the three different milling systems.
| Sample | WAI (g/g) | WSI (%) |
|---|---|---|
| DFS-PSM | ||
| WSF | 2.67 ± 0.02 d;B | 3.47 ± 0.22 a;A |
| >400 µm | 2.63 ± 0.03 c | 9.03 ± 0.37 c |
| 400–180 µm | 2.33 ± 0.02 b | 7.38 ± 0.73 b |
| <180 µm | 2.29 ± 0.02 a | 6.26 ± 1.48 b |
| PRM | ||
| WSF | 2.33 ± 0.06 a;A | 6.88 ± 0.78 b;B |
| Bran fine | 4.46 ± 0.16 d | 9.70 ± 2.05 c |
| B1 | 2.54 ± 0.03 b | 2.42 ± 0.10 a |
| C1 | 2.75 ± 0.01 c | 2.84 ± 0.06 a |
| C4 | 2.47 ± 0.22 ab | 3.18 ± 0.06 a |
| C5/C6/B4/B5 | 2.64 ± 0.02 bc | 3.70 ± 0.41 a |
| IRM | ||
| WSF | 2.62 ± 0.10 B | 3.96 ± 0.12 A |
Means (n = 3 ± standard deviation) with same superscript lowercase letters within a column and within the same milling system are not significantly different at p > 0.05 (Fisher’s Least Significant Difference test). Means (n = 3 ± standard deviation) with same superscript capital letters (comparison of the WSFs) are not significantly different at p > 0.05 (Fisher’s Least Significant Difference test). DFS-PSM: Dry flake squeezer—pilot scale stone mill, PRM: Pilot scale roller mill, IRM: industry scale roller mill.