Quality of Canadian food-type soybeans 2018
Canadian generic food-type soybeans
Table 3 shows the quality data for 2018 Canadian generic food-type soybeans used for tofu, soymilk or miso. Mean 100-seed weight for 2018 generic food-type soybean was 21.7 g, which was higher than the mean for 2017 (19.9 g). Water absorption capacity was 1.13 g H2O per g seeds, which was similar to than that for 2017. Water uptake factor was 2.13 for 2018. Seed size and water uptake are important quality characteristics of food-type soybeans for the production of tofu, soymilk and miso.
The mean protein content for 2018 Canadian generic food-type soybean was 41.8 g per 100 g dry matter or 36.4 g per 100 g at 13% moisture basis (Table 3), which was higher than the mean for 2017 (41.1 g per 100 g dry matter or 35.8 g per 100 g at 13% moisture basis). The mean oil content for 2018 was 21.8 g per 100 g dry matter or 19.0 g per 100 g at 13% moisture basis, which was higher than the mean for 2017 (20.3 g per 100 g dry matter or 17.7 g per 100 g at 13% moisture basis).
The mean sucrose content in 2018 generic food-type soybean was 59.3 g per kg dry matter, which was lower than the mean for 2017 (70.4 g per kg dry matter) (Table 3). The mean total oligosaccharides content for 2018 was 44.6 g per kg dry matter, which was lower than the mean for 2017 (47.4 g per kg dry matter).
The mean total isoflavones content for 2018 Canadian generic food-type soybean was 2349 mg per kg dry matter, which was higher than the mean for 2017 (Table 3).
Quality parameter | Number of samples | 2018 | 2017 |
---|---|---|---|
Physical characteristic | |||
100-seed weight, g/100 seeds | 229 | 21.7 | 19.9 |
Water absorption, g H2O/g seeds | 229 | 1.13 | 1.18 |
Water uptake factor, g soaked wt/g seeds | 229 | 2.13 | 2.18 |
Chemical composition (g/100 g)Footnote2 | |||
Protein content | 229 | 41.8 (36.4) | 41.1 (35.8) |
Oil content | 229 | 21.8 (19.0) | 20.3 (17.7) |
Sugar content (g/kg DM) | |||
Sucrose | 229 | 59.3 | 70.4 |
Raffinose | 229 | 8.1 | 9.3 |
Stachyose | 229 | 35.1 | 37.5 |
Verbascose | 229 | 1.3 | 0.56 |
Total oligosaccharidesFootnote3 | 229 | 44.6 | 47.4 |
Isoflavones (mg/kg DM) | |||
Total isoflavonesFootnote4 | 229 | 2349 | 3643 |