Quality of western Canadian flaxseed 2014

Summary

The Canadian Grain Commission’s Harvest Sample Program of western Canadian flaxseed shows that the 2014 crop contains lower oil content, similar protein content and higher iodine values when compared to the 2013 harvest.

Table 1 shows data for Flaxseed, No. 1 Canada Western. Oil content is 45.6%, 0.3% lower than the 2013 mean (45.9%) and similar to the 10-year mean (45.6%). Protein content is 21.1% and is slightly lower than the 2013 mean (21.2%) and 1.3% lower than the 10-year mean (22.4%). Iodine value is 192.9 units, which is 3.2 units higher than the 2013 value of 189.7 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 2014 harvest survey
Quality parameter 2014 2013 2004-2013 Mean
Oil content Footnote 1, % 45.6 45.9 45.6
Protein content Footnote 2, % 21.1 21.2 22.4
Free fatty acids, % 0.2 0.1 0.2
Iodine value 192.9 189.7 191.5
Table 2. Flaxseed, No. 1 Canada Western - Fatty acid composition for 2014 harvest survey
Fatty acid Footnote 3, % in oil 2014 2013 2004-2013 Mean
Palmitic acid (C16:0) 5.1 5.2 5.0
Stearic acid (C18:0) 3.2 3.3 3.3
Oleic acid (C18:1) 18.2 19.5 18.1
Linoleic acid (C18:2) 14.8 15.1 15.7
α-Linolenic acid (C18:3) 57.9 56.0 57.0

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