Quality of western Canadian mustard 2017

Harvest samples

This year’s Harvest Sample Program included 279 mustard samples, compared to 344 in 2016. This included 175 yellow, 62 brown and 42 oriental mustard samples. Overall, 66% of the samples came from Saskatchewan followed by 34% from Alberta. Less than 1% came from Manitoba.

Producers and grain companies that routinely handle mustard seed submitted samples of mustard grown in 2017 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 and protein content on all individual whole-seed samples were determined by using a FOSS NIRSystems 6500 NIR spectrometer, calibrated to and verified against the appropriate listed reference methods. Total glucosinolate content was also determined on individual brown and oriental mustard samples. 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 type. Composites were also prepared for the most common mustard varieties.

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