REFINING OF SOYA BEAN OIL 

This project work studied the refining of crude soya bean oil extracted from soya bean seed using alkali /caustic refining method. The work was  carried  out  using  phosphoric  acid  for  the  degumming /pretreatment process and sodium hydroxide for the neutralization /refining of the oil. Certain tests were carried out on both the crude and refined oil such as saponification value, acidic value, iodine value, specific  gravity  and  viscosity,  the  results  obtained  after  the  tests include 42.075, 164.28, 589.05, 0.8944 and 0.038 respectively for refined oil and 44.88, 109.52, 448.8, 0.8148 and 0.035 respectively for the crude oil.