Quality of western Canadian flaxseed 2015

Summary

The Canadian Grain Commission’s Harvest Sample Program of western Canadian flaxseed shows that the 2015 crop contains similar oil content, higher protein content and slightly lower iodine values when compared to the 2014 harvest.

Table 1 shows data for Flaxseed, No. 1 Canada Western. Oil content is 45.7%, which is similar to the 2014 mean (45.6%) and similar to the 10-year mean (45.7%). Protein content is 22.5% and is higher than the 2014 mean (21.1%) and similar to the 10-year mean (22.4%). Iodine value is 191.5 units, which is 1.4 units lower than the 2015 value of 192.9 units.

Environmental factors can play an important role in oil and protein content trends, as well as fatty acid composition. The Grain Research Laboratory’s long-term harvest sample results have shown cool, wet growing conditions tend to produce a flaxseed crop with higher oil content and iodine values and lower protein content.

Table 1. Flaxseed, No. 1 Canada Western - Quality data for 2015 harvest
Quality parameter 2015 2014 2005-14 Mean
Oil contentFootnote 1, % 45.7 45.6 45.7
Protein contentFootnote 2, % 22.5 21.1 22.2
Free fatty acids, % 0.2 0.2 0.2
Iodine value 191.5 192.9 191.0
Table 2. Flaxseed, No. 1 Canada Western - Fatty acid composition for 2015 harvest
Fatty acidFootnote 3, % in oil 2015 2014 2005-2014 Mean
Palmitic acid (C16:0) 4.9 5.1 5.0
Stearic acid (C18:0) 3.5 3.2 3.4
Oleic acid (C18:1) 18.8 18.2 18.5
Linoleic acid (C18:2) 14.6 14.8 15.6
α-Linolenic acid (C18:3) 57.2 57.9 56.7

Footnotes

Footnote 1

Dry matter basis

Return to footnote 1 referrer

Footnote 2

N x 6.25; Dry matter moisture basis

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Footnote 3

Percentage of total fatty acids in the oil including palmitic (C16:0), stearic (C18:0), oleic (C18:1), linoleic (C18:2), and linolenic (C18:3)

Return to footnote 3 referrer