Table 1 The proximate compositions of ungerminated black soybean (Glycine max L. cv. Cheongja #3) flours with roasting temperatures and times
Roasting temp. (°C) | Roasting time (min) | Moisture (g/100 g) | Crude ash (g/100 g) | Crude protein (g/100 g) | Crude fat (g/100 g) | Carbohydrate (g/100 g) |
160 | 10 | 6.62±0.03a1) | 5.38±0.02d | 37.54±0.07j | 16.37±0.03g | 34.09±0.05efg |
180 | 10 | 5.68±0.06c | 5.41±0.02cd | 37.93±0.10i | 16.77±0.09f | 34.20±0.08ef |
200 | 10 | 5.79±0.04b | 5.27±0.04e | 38.55±0.26g | 17.33±0.19d | 33.06±0.16j |
220 | 10 | 4.95±0.05f | 5.41±0.05cd | 38.75±0.04f | 17.36±0.03d | 33.54±0.03i |
240 | 10 | 3.88±0.04h | 5.29±0.03e | 38.96±0.05e | 16.78±0.12f | 35.10±0.12b |
160 | 20 | 5.78±0.07b | 5.43±0.08cd | 37.92±0.18i | 17.04±0.12e | 33.83±0.13gh |
180 | 20 | 5.04±0.06e | 5.43±0.02cd | 38.36±0.13h | 16.93±0.12ef | 34.24±0.29de |
200 | 20 | 5.08±0.07e | 5.29±0.03e | 39.02±0.04e | 18.72±0.13a | 31.88±0.22l |
220 | 20 | 3.00±0.06i | 5.45±0.02bc | 39.33±0.08d | 18.46±0.07b | 33.76±0.18hi |
240 | 20 | 1.70±0.06k | 5.49±0.04b | 39.96±0.11b | 16.85±0.16f | 36.00±0.28a |
160 | 30 | 5.45±0.08d | 5.40±0.01cd | 37.87±0.06i | 17.34±0.13d | 33.95±0.12fgh |
180 | 30 | 4.74±0.02g | 5.45±0.01bc | 38.48±0.02gh | 16.87±0.03ef | 34.47±0.05cd |
200 | 30 | 4.70±0.04g | 5.30±0.03e | 39.69±0.15c | 17.69±0.09c | 32.62±0.06k |
220 | 30 | 2.60±0.08j | 5.44±0.01bc | 39.56±0.06c | 18.49±0.12b | 33.91±0.22gh |
240 | 30 | 1.25±0.04l | 5.56±0.02a | 40.71±0.08a | 17.77±0.19c | 34.70±0.26c |
The moisture, crude ash, protein, fat, and carbohydrate contents of ungerminated black soybean flours were 8.72, 5.71, 36.08, 16.82, and 32.67 g/100 g, respectively.
All values are expressed as the mean ± SD of triplicate determinations. Means with different superscripts within a column (a l) are significantly different at p < 0.05 by a Duncan’s multiple range test.