Pembuatan Setil Oleat dari Reaksi Esterifikasi Setil Alkohol dan Asam Oleat Menggunakan Katalis Enzim Lipase dan Radiasi Mikrowave Widia Katarina Sianipar

Abstract

The production of cetyl oleate from the esterification of oleic acid and cetyl alcohol with a lipase enzyme catalyst and under a microwave irradiation has been carried out. The parameters examined in this reserch are molar ratios, catalystweight and eaction time at microwave power. Formation of cetyl oleate using an spectrophotometer FT-IR and the conversion of fatty acids to cetyl oleate wasdetermined by alkalimetric titration. The maximum conversion of cetyl oleate was 94,0 + 0,7% under reaction condisionof molar ratio of 1 : 1, reaction time of 0.5 minutes, lipase weight of 15% and microwave power of 10%. The formation of an ester group from the resulting cetyl oleate is indicated by the presense of an ester absorption band at a wave nimber of 1058.6 cm-1 which shows a C-O-C ester group with bending vibrations and with a sharp peak