Pembuatan Butil Dekanoat dari Esterifikasi Butanol dan Asam Dekanoat pada Perbandingan Waktu Reaksi dan Daya Microwave Menggunakan Katalis Enzim Lipase

Abstract

The production of Butyl Decanoate from Butanol and decanoic acid has been carried out through an esterification reaction using lipase enzyme as a catalyst and microwave radiation. The parameters studied in this study were reaction time with variations of 0,5, 1, 3, 5, and 7 minutes and microwave power with variations of 10, 20, 30, 40, and 50%. Determination of the conversion of Butyl Decanoate was carried out by alkalimetric titration. The obtained Butyl Decanoate was analyzed for changes in its functional groups using FT-IR. The maximum conversion of Butyl Decanoate of 97.52% ± 0.20% was obtained for the reaction time parameters obtained at conditions of 1 minute, 20% microwave power, 1:2 mole ratio, and 1% catalyst weight. While for the microwave power parameters obtained at conditions of 20% microwave power, 1 minute time, 1:2 mole ratio, and 1% catalyst weight of 97.54% ± 0.21%. The formation of an ester group from the resulting butyl decanoate is marked by a peak at a wave number of 1714 cm-1 indicating the stretching vibration of the group (C = O) which indicates the presence of esters and is supported by the formation of stretching vibrations -C-O-C- ester at a wave number of 1028 cm-1. Based on GC-MS, the ion peak at m/z 228 indicates the molecular weight of butyl decanoate and the base peak 56 so that it can be concluded that there has been a butanol substitution process for the H atom contained in the carboxylic acid group of decanoic acid.