Throughout these stages, the oil is carefully monitored to meet strict food safety standards and regulatory requirements for commercial食用油 production. These flowers eventually develop into small pods, each containing two tiny seeds that hold approximately 40% oil by weight.
Understanding Canola Oil Refining Stages
Solvent Extraction: The Modern Extraction Method While traditional methods used mechanical pressing alone, modern canola oil production primarily employs solvent extraction to achieve higher yields. This crushing process reduces the seeds into small, flattened pieces called "flakes," which dramatically increases the surface area available for oil extraction.
The extracted oil mixture undergoes multiple filtration and purification stages to remove impurities, free fatty acids, and unwanted compounds. The oil is then filtered, tested for quality parameters, and packaged in containers designed to protect it from light and oxygen exposure.
Inside the Refinery: How Canola Oil Refining Stages Remove Impurities and Ensure Quality
The crushed flakes are washed with food-grade hexane, a highly effective solvent that dissolves the oil compounds while leaving behind the solid protein-rich residue known as canola meal. Once cleaned, the seeds are carefully dried to reduce moisture content to an optimal level, usually around 3-5%, which prevents spoilage and ensures efficient oil extraction in the subsequent stages.
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