Quality of western Canadian flaxseed 2013
The Canadian Grain Commission’s harvest survey of western Canadian flaxseed shows that the 2013 crop contains higher than average oil content, lower iodine values and below average protein content when compared to the 2012 harvest and the 10-year means.
Table 1 shows data for Flaxseed, No. 1 Canada Western. Oil content is 45.9%, 0.8% higher than the 2012 mean (45.1%) and 0.5% higher than the 10-year mean (45.4%). Protein content is 21.1%, 1.7% lower than the 2012 mean (22.8%) and the 10-year mean (22.8%). The iodine value was at 189.7 units, which is slightly lower than the 2012 value at 190.7 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 survey results have shown that cool, wet growing conditions tend to produce a flaxseed crop with higher oil content and iodine value, but lower protein content, which was illustrated with the 2013 harvest.
|Quality parameter||2013||2012||2003-2012 Mean|
|Oil content Footnote 1, %||45.9||45.1||45.4|
|Protein content Footnote 2, %||21.2||22.8||22.8|
|Free fatty acids, %||0.13||0.17||0.18|
|Fatty acid Footnote 3, % in oil||2013||2012||2003-2012 Mean|
|Palmitic acid (C16:0)||5.2||5.0||5.0|
|Stearic acid (C18:0)||3.3||3.4||3.4|
|Oleic acid (C18:1)||19.5||19.2||18.4|
|Linoleic acid (C18:2)||15.1||14.7||15.7|
|α-Linolenic acid (C18:3)||56.0||56.8||56.7|
- Footnote 1
Dry matter basis
- Footnote 2
N x 6.25; Dry matter moisture basis
- 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)
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