Effect of Chemical Refining Steps on the Some Micro and Macro Element Content and Quality Parameters in Corn Oil

In this study, it was aimed to determine some element contents and quality properties compare these parameters at each stage in the chemically refining process of crude corn oil. Color (lovibond tintometer), free fatty acidity, peroxide values acid compositions were determined samples oil taken from consecutive stages refining. Also, content elements (Na, Mg, K, Ca, Fe, Pb, Cd, Ni, Mn, Zn, Co, Cr, P, Cu) analyzed, by using inductively-coupled plasma-mass spectrometry (ICP-MS) plasma-optical emission (ICP-OES) after microwave digestion. The color (Lovibond acidity varied between 2.7-16, %0.09-2.12, 10.95-1.08 mEqO2/kg, respectively. Oleic, linoleic linolenic changed 30.486-30.580%, 54.339-54.703% 0.972-0.993%, respectively, stages. While no trans acids detected degumming-neutralization step, very low amount oleic (0.040%) total (0.132%) bleached little more increased last However, refined < 0.3%. It clearly seen that Na, Cu decreased significantly end process. Although Co Zn oil, not results obtained showed effected especially changes contents.