Many parameters have been used to indicate oil quality. These are free fatty acids (FFA), moisture, impurities, peroxide value, anisidine value, UV-visible measurements of dienes and trienes, etc. Crude palm oil trade based on FFA, moisture and impurities. However, these parameters alone do not give an adequate indication of its quality with respect to its oxidative status and its bleachability (i.e ability to be refined to less than 3R on a 5 1/4 inch Lovibond cell). In some instances, oils with low FFA values have high oxidative characteristics.

Main Researcher: Siew, W. L.