Table 1.
Β-Glucan | 3 d50 (µm) | 4 WRC (mL/g) | Extractability (%) | Apparent Viscosity (mPa·s) |
Colloidal Stability (mL) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Content (g/100 g d.m.) |
1 Mw (kDa) | 2 Đ | At 60 min | Final | 1 h | 4 h | 24 h | ||||
OBC | 21.1 ± 0.2 b | 2748 ± 65 | 2.1 ± 0.2 | 426 ± 6 a | 3.0 ± 0.0 b | 9.9 ± 0 f | 305 ± 2 a | 969 ± 7 a | 1.5 ± 0.6 a | 2.3 ± 1.3 a | 16.3 ± 0.4 a |
OBC-Hyd | 21.2 ± 0.2 b | 893 ± 42 | 6.7 ± 1.0 | 124 ± 5 b | 3.1 ± 0.1 b | 21.3 ± 1 e | 198 ± 21 b | 684 ± 22 b | 0.8 ± 0.3 ab | 1.5 ± 0.4 ab | 15.4 ± 1.3 a |
OBC-Sol | 44.5 ± 0.8 a | 294 ± 20 | 4.1 ± 0.3 | 14 ± 0.4 c | 1.9 ± 0.2 d | 80.2 ± 1 a | 34 ± 2 cd | 63 ± 4 d | 1.0 ± 0.8 ab | 1.4 ± 0.8 ab | 4.0 ± 2.9 b |
OBC-M | n.a. | 350 ± 2 | 4.4 ± 0.5 | 12 ± 0.2 c | 2.5 ± 0.2 c | 27.3 ± 2 d | 56 ± 2 c | 218 ± 5 c | 0.5 ± 0.0 b | 0.5 ± 0.0 b | 0.5 ± 0.0 c |
OBC-Hyd-M | n.a. | 203 ± 10 | 3.2 ± 0.1 | 15 ± 0.2 c | 2.3 ± 0.1 c | 47.6 ± 1 b | 32 ± 1 cd | 65 ± 2 d | 0.8 ± 0.3 ab | 0.6 ± 0.3 b | 1.3 ± 0.6 bc |
OBC-Sol-M | n.a. | 148 ± 9 | 2.7 ± 0.2 | 6.2 ± 0.1 c | 5.8 ± 0.1 a | 38.9 ± 0 c | 17 ± 1 d | 26 ± 1 e | 1.0 ± 0.0 ab | 1.1 ± 0.2 ab | 1.1 ± 0.2 bc |
1 Mw = weight average molecular weight, 2 Đ = dispersity (Mw/Mn), 3 d50 = average particle size, 4 WRC = water retention capacity, n.a. = not analyzed. Different letters (a–f) within each column indicate statistically significant differences (p < 0.05) between the samples. OBC: Oat bran concentrate; OBC-Hyd: OBC hydrolyzed with β-glucanase; OBC-Sol: water-soluble fraction from OBC after hydrolysis with β-glucanase; OBC-M: OBC microfluidized; OBC-Hyd-M: OBC-Hyd microfluidized; OBC-Sol-M: OBC-Sol microfluidized.