Quality of western Canadian flaxseed 2012
The Canadian Grain Commission Harvest Survey of Western Canadian Flaxseed shows the 2012 crop to contain lower than average oil content and IV values and above average protein content when compared to the 2011 harvest and the 10 year means.
When comparing to the 2011 harvest, the oil content is 0.8% lower at 45.1% and 0.3% lower than the 10 year mean. Protein content is 0.9% higher than 2011 at 22.8% and similar to the 10 year average of 22.9%. Iodine values for 2012 were at 190.7units, which is 1.8 units lower than the 2011 harvest and 0.61 units lower than the 10 year average.
Environmental factors can play an important role in oil and protein content trends as well as fatty acid composition. The GRL’s long-term harvest survey results have shown warm dry growing conditions tend to produce a flaxseed crop with lower oil contents and IV, but higher protein contents, which was illustrated with this year’s 2012 harvest.
|Quality parameter||2012||2011||2002-2011 Mean|
|Oil content1, %||45.1||45.9||45.4|
|Protein content2, %||22.8||21.9||22.9|
|Free fatty acids, %||0.2||0.20||0.19|
|Fatty acid3, % in oil||2012||2011||2002-2011 Mean|
|Palmitic acid (C16:0)||5.0||5.1||5.0|
|Stearic acid (C18:0)||3.4||3.4||3.4|
|Oleic acid (C18:1)||19.2||17.9||18.2|
|Linoleic acid (C18:2)||14.7||15.1||15.8|
|α-Linolenic acid (C18:3)||56.8||57.6||56.9|
- Footnote 1
Dry matter basis
- Footnote 2
N x 6.25; 8.5% 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)