Soybean Oil Refining

 

 

VII -  CONVENTIONAL FLOW-SHEET OF THE REFINING PROCESS 

 

DIAGRAM  1 shows the conditioning with phosphoric acid. 

 

DIAGRAM 2 shows the continuous refining process. 

 

DIAGRAM 3 indicates the continuous washing. 

 

DIAGRAM  4  snows a semi- continuous deodorizing “SCD” (heat recovery by direct oil-oil 

heat exchange). 

 

DIAGRAM 5 shows a double-shell deodorizer modified for heat recovery. 

 

 

VIII -  EFFECTS OF PROCESSING ON THE NUTRITIVE VALUE 

 

 

1 - Degumming and alkali refining 

 

The degumming process removes phospholipids and other polar hydratable lipids. Alkali 

refining has little effect on the triglycerides of the oil, and thus on its principal nutritional 

function. The removal of water-binding phospholipids may be advantageous in preventing 

spattering and drowning if the product is used for frying operations. 

 

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