Quality of western Canadian canola 2013
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).
|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|
|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|
- Footnote 1
8.5% moisture basis
- Footnote 2
N x 6.25, 8.5% moisture basis
- 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).
- 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.
- 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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