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. 2022 Jan 15;11(2):228. doi: 10.3390/foods11020228

Table 1.

Characteristics of OBC samples: β-glucan content, average particle size, WRC, extractability and properties in suspension.

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.