Quality of western Canadian flaxseed 2018

1. Introduction

This report presents quality data and information based on samples of western Canadian flaxseed from the Canadian Grain Commission’s 2018 Harvest Sample Program. The quality data includes oil, protein, free fatty acids, fatty acid composition and iodine values of harvest samples submitted to the Grain Research Laboratory. Producers and grain companies submitted the samples throughout the harvest period. The Prairie provinces map shows traditional growing areas for flaxseed in western Canada.

Figure 1. Map of Prairie provinces showing traditional growing areas for flaxseed

Traditional growing areas of flaxseed in Canadian prairie provinces.

Source: Flax Council of Canada

Summary

The Canadian Grain Commission’s Harvest Sample Program of western Canadian flaxseed shows that the 2018 crop contains lower oil content, similar protein content and lower iodine values when compared to the 2017 harvest.

Table 1 shows data for Flaxseed, No. 1 Canada Western. Oil content is 45.7%, which is lower than the 2017 mean (46.1%) and identical to the 10-year mean (45.7%). Protein content is 23.1%, which is similar to the 2017 mean (23.2%) and higher than the 10-year mean (22.2%). Iodine value is 189.7 units, which is lower than the 2017 value of 192.5 units. Oil and protein values are reported on a dry matter basis.

Table 1. Flaxseed, No. 1 Canada Western Quality data for 2018 harvest
Quality parameter 2018 2017 2008 to 2017 mean
Oil contentFootnote1, % 45.7 46.1 45.7
Protein contentFootnote2, % 23.1 23.2 22.0
Free fatty acids, % 0.15 0.18 0.18
Iodine value 189.7 192.5 192.0
Table 2. Flaxseed, No. 1 Canada Western Fatty acid composition for 2018 harvest
Fatty acidFootnote3, % in oil 2018 2017 2008 to 2017 mean
Palmitic acid (C16:0) 5.1 5.0 5.0
Stearic acid (C18:0) 3.6 3.5 3.4
Oleic acid (C18:1) 18.7 17.8 18.2
Linoleic acid (C18:2) 15.8 15.0 15.3
α-Linolenic acid(C18:3) 55.9 57.7 57.4
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