The effect of the mole ratio of ethanol solution and palm kernel oil on the pattern of glycerides content of the level I, II and III PKO ethanolysis products

The specific purpose of this scientific article is to obtain scientific information about thepattern composition of monoglycerides (MG), diglycerides (DG) and triglycerides (TG) inpalm kernel oil (PKO) ethanolysis products at three stages and of the mole ratios ofethanol in ethoxy solution (ethanol 90% - NaOH 1%) to PKO (assumed as trilaurin).Ethanolysis reactions of PKO had been carried out in three stages, as follows: Level Iethanolysis was carried out at 60°C, at a stirring speed of 1000 rpm for 3 mins, in thetreatment of the mole ratios of ethanol in ethoxy solution (ethanol 90% - NaOH 1%) toPKO of the 10, 12, 14, 16, 18 and 20, resulting in ethanolysis product I and the residualreaction I. Level II ethanolysis was ethanolysis of the residual reaction I, resulting inethanolysis product II and residual reaction II. Level III ethanolysis was ethanolysis of theresidual reaction II, resulting in ethanolysis product III. The mean yield of all treatmentsfor PKO Ethanolysis Levels I, II, and III were 12.26±0.46%, 11.20±2.61%, and11.78±2.99% (w/w), respectively. The highest total yield of PKO ethanolysis level I, II,and III was 41.04±9.74% (w/w) from the mole ratio treatment of 20, while the lowestyield was 27.54±3.39%; (w/w) from the mole ratio treatment of 10. The average amountof MG, DG, and TG from all treatments were 9.740%, 12.801%, and 2.675%,respectively. The highest MG content was obtained from the mole ratio treatment of 20 atEthanolysis Level I (11.83%).