Refined palm oil (500 g) was added into 1000 ml of round bottom flask equipped with condenser. After the oil was heated to 65 °C, the solution of sodium hydroxide (5.0 g) in methanol (144.82 ml), 6:1 molar ratio of methanol to oil, was slowly added into the reaction and then the mixture was heated to 65oC for 1.50 h. The reaction was monitored by TLC developed by hexane: ethyl acetate: acetic acid (90:10:1 v/v) and visualized by vanillin solution. The mixture was then transferred to a separatory funnel and allowed glycerin to separate. The methyl ester layer was later brought to adsorption process.