Quality of Canadian food-type soybeans 2018

Food-type soybean samples

The Canadian Grain Commission (CGC) received 14 natto-type and 266 generic food-type soybean samples including 3 from Prairies, 187 from Ontario, 87 from Quebec and 3 from Atlantic region. All samples were graded by the CGC’s Industry Services (IS) and were Canada No.2 or higher. Composite samples were prepared according to region as shown in Fig. 1. All composite samples were analyzed for 100-seed weight, water absorption capacity/water uptake factor, protein, oil, sugar and total isoflavones content. Protein and oil content were determined using a Tecator Infratec 1241 Grain Analyzer near-infrared (NIR) spectrometer which was calibrated and verified against the appropriate laboratory reference method. Sugars and isoflavones were analyzed by high performance liquid chromatography (HPLC) methods. It is important to note that samples reported by grade do not necessarily represent the actual distribution of grade.

Figure 1: Map of Canada showing origin of 2018 food-type soybean samples from the Canadian Grain Commission’s Harvest Sample Program