Canola produced under boreal climatic conditions in Newfoundland and Labrador
Canola produced under boreal climatic conditions in NL have a unique lipid composition and expeller press extraction retained the composition for commercial use
The average fatty acid (FA) composition of canola oil is made up of 62% oleic acid (C18:1n9), 20% linoleic acid (C18:2n6), 10% linolenic acid (C18:3n3) and 7% saturated FA. We investigated whether boreal climate (7.5 – 17.2 °C) favorably altered the FA composition of canola. Results indicate that canola cultivated in boreal climatic conditions had twice the levels of omega-3 FA (17 – 20%) compared to canola from other growing areas (10%). The presence of monoacetyldiacylglycerol (MAcDG), a unique class of triglyceride is reported for the first time in canola cultivated in boreal climate, and has the potential to reduce the risk of obesity and other health related diseases. We further demonstrated that non-solvent based extraction method retained the novel lipid composition without reducing the quality of oil being produced. Our results contribute significantly to the understanding of lipid accumulation in the world's third most important oil crop when cultivated in boreal or northern climate.