Canola Oil Refinery, Canola Oil Processing Plant, Canola Oil Plant and more…
Introduction To Canola Oil Processing Technology
Despite being GM oil, canola oil scores high for coronary health as it contains less saturated fat than any other oil. It is higher in the omega-3 fatty acid, alpha linoleic acid (ALA) that is important to intake in the diet.
Refining Of Canola Oil
Canola oil is refined by alkali neutralization process which undergoes in following steps.
- Neutralization
- Bleaching
- Deodorization
Alkali Refining
Canola oil is refined by alkali neutralization process which undergoes in following steps.
- GUMS Conditioning & Neutralization: Transformation of the non-hydrate able phospholipids into their hydrate able form by breaking down the metal/ phosphatide complexes with a strong acid followed by alkali treatment to neutralize the fatty acids and removal of soap by centrifuge.
- Washing: Removal of residual soaps by treatment with hot water and separation with centrifugal separator
- Drying: Removal of moisture under vacuum.
Bleaching Of Canola Oil
“Bleaching” is a process of selective removal of pigments and impurities by the physical and chemical interaction of an adsorbent with an oil or fat to improve its quality. This process refers to the art of removing
- Colour pigments
- Dirt, Trace metals
- Removal of polycyclic Aromatic compounds
- Phospholipids
Deodorization Of Canola Oil
Deodorization is a multi-step process comprising
- De-aeration
- Heating
- Deodorization cum De-acidification
- Cooling
Pre-treated oil is processed to remove the odour, fatty acids and other micro constituents. Deodorization is essentially a steam distillation process whereby volatile odoriferous components like free fatty acids and flavoured substances are stripped from the relatively non-volatile oil at temperature below those damaging the oil. Deodorization helps in eliminating many off flavours and off- colours in the feed. deacidification and deodorization is carried out at 230 – 250°C under high vacuum of the order of 1.5 torr with sparging steam for about 60 minutes. This makes the oil free from odoriferous compounds and free fatty acids.