Sintesis Isopropil Palmitat dari Esterifikasi Isopropil Alkohol dan Asam Palmitat pada Perbandingan Waktu Reaksi dan Kekuatan Mikrowave Menggunakan Katalis Enzim Lipase
Synthesis of Isopropylpalmitate from The Esterification of Isoprophyl Alcohol and Palm/Tic Acid in Comparison of Reaction Time and Strength Microwave Using Catalyst Lipase Enzyme
Abstract
Synthesis of isopropyl palmitate from the esterification of isopropyl alcohol and
palmitic acid using a lipase enzyme catalyst has been performed using microwave
radiation. The parameters studied in this study were the effect of reaction time and
microwave power. Confirmation of the formation of isopropyl palmitate was carried out
using an FT-IR spectrophotometer while the conversion was determined using an
alkalimetric titration. The highest conversion of isopropyl palmitate in the parameters
of reaction time and microwave power was obtained under the conditions of reaction
time of 5 minutes, microwave power of 20p, catalyst weight of 20% and molar ratio of
1: 2 of 94. 05 ± 0. 21 %. The formation of isopropyl palmitate was indicated by the
appearance of an ester absorption band at wave number of 1297. I cm-] indicating the
C-OC group with bending vibrations.
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