Quality of western Canadian mustard 2015

Harvest samples

This year’s Harvest Sample Program included 367 samples, compared to 387 in 2014. This included 234 yellow, 50 brown and 83 oriental mustard samples. Overall, 68% of the samples came from Saskatchewan, followed by 30% from Alberta and 2% from Manitoba.

Producers, grain companies and elevators that routinely handle mustard seed submitted samples of mustard grown in 2015 to the Canadian Grain Commission. The individual samples were cleaned to remove dockage and were graded by Canadian Grain Commission inspectors, following Chapter 12 of the Official Grain Grading Guide.

Oil, protein, and total glucosinolate content was determined on all individual whole-seed samples using a FOSS NIRSystems 6500 scanning near infrared spectrometer, which was calibrated to and verified against the appropriate listed reference methods. The reference procedures are listed under Oilseeds Methods.

Composite samples were analysed for oil, protein, total glucosinolate and chlorophyll content, as well as for fatty acid composition. Composites were prepared by combining No. 1 mustard samples by province and type and by combining No. 2, No. 3, No. 4 and Sample grades by western Canada and by type. Composites were also prepared for the most common mustard varieties.