Quality of western Canadian canola 2013

Summary

The 2013 harvest had a high percentage of samples that graded Canola, No. 1 Canada (93.7%). This percentage is much higher than the percentage for the 2012 harvest (82.0%) (Figure 4) and is the highest percentage since 2005. The 2008 harvest is the only other year with comparable results (94.7%). Some variations in grade distribution, however, were observed in 2013. Less than 65% of samples from some areas of Alberta graded Canola, No. 1 Canada (Figure 5).

The western Canadian canola crop (Canola, No. 1 Canada) was characterized by a significant increase in oil (44.8 versus 43.5%) and lower protein content (19.7 versus 21.3%), compared to the 2012 crop (Table 1). Average chlorophyll content was lower in 2013 than in 2012 and 2011 (12.0 mg/kg versus 17.4 and 15.9 mg/kg, respectively) (Table 1). The crop had a higher oleic acid content and lower linoleic acid and α-linolenic acid content when compared to the 2012 crop (63.4 versus 62.5, 18.5 versus 19.2 and 9.1 versus 9.6% for oleic, linoleic acid, and α-linolenic acid respectively). Total saturated fatty acid content was slightly higher than what was observed in 2012 (6.8 versus 6.6%). This resulted in much lower iodine value, compared to 2012 (111.7 versus 113.3 units). Mean free fatty acid levels in Canola, No. 1 Canada seed was similar than what was observed in 2012 (0.13 versus 0.14%) (Table 1).

Table 1 - Canola, No. 1 Canada: Quality data for 2013 harvest survey
Quality parameter 2013 2012 2011 2008-2012 Mean
Number of received samples 1676 2108 1749  
Number of Canola, No. 1 Canada samples 1569 1716 1492 1487
Oil contentFootnote 1 (%) 44.8 43.5 45.2 44.4
Protein contentFootnote 2 (%) 19.7 21.3 19.6 20.3
Oil-free proteinFootnote 2 (%) 37.5 40.6 38.8 40.3
Chlorophyll content (mg/kg in seed) 12.0 17.4 15.9 14.5
Total glucosinolatesFootnote 1 (µmoles/g) 10 11 10 10
Free fatty acids (%) 0.13 0.14 0.12 0.13
Oleic acid (% in oil) 63.4 62.5 62.1 62.5
Linoleic acid (% in oil) 18.5 19.2 19.1 18.9
α-Linolenic acid (% in oil) 9.1 9.6 9.9 9.7
Erucic acid (% in oil) 0.01 0.01 0.01 0.01
Total saturated fatty acidsFootnote 3 (% in oil) 6.8 6.6 6.8 6.8
Iodine value 111.7 113.3 113.6 113.2
Total mono-unsaturated fatty acids (MUFA)Footnote 4 (% in oil) 65.1 61.7 61.4 64.1
Total poly-unsaturated fatty acids (PUFA)Footnote 5 (% in oil) 27.7 31.4 31.5 28.6

Footnotes

Footnote 1

8.5% moisture basis

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Footnote 2

N x 6.25, 8.5% moisture basis

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Footnote 3

Total saturated fatty acids are the sum of palmitic (C16:0), stearic (C18:0), arachidic (C20:0), behenic (C22:0), and lignoceric (C24:0).

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Footnote 4

Total mono-unsaturated fatty acids are the sum of palmitoleic (C16:1), oleic (C18:1), eicosenoic (C20:1), erucic (C22:1), and nervonic (C24:1) acids.

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Footnote 5

Total poly-unsaturated fatty acids are the sum of linoleic (C18:2),linolenic (C18:3) and eicosadienoic (C20:2) acids.

Results were calculated using western Canadian averages for each grade; provincial averages were weighted using Statistics Canada production estimate and of the grade distribution for each crop district.

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