Abstract
The purpose of this study was to produce glycerol monostearate according to standard specifications by studying the effect of the variable reactant ratio, amount of catalyst, power and esterification reaction time between glycerol and stearic acid on glycerol monostearate yield using microwave for 40-80 minutes to accelerate reaction temperature. The esterification reaction is the reaction between stearic acid and glycerol using HCl as catalyst in this research. The resulting product is glycerol monostearate which will then be recrystallized and analyzed with AOCS Ca 5a-40 to know the content of glycerol monostearate. In this study, the variables are mole ratio (1:1, 2:1,3:1) , amount of catalyst (0,5%wt, 1%wt, 1,5%wt), temperature (120°C, 130°C, 140°C, 150°C, 160°C) and reaction time (40, 50, 60, 70, 80 minutes). By using reactant ratio 3:1, catalyst weight 1%wt, heating time 80 minutes and temperature 160°C, the product is glycerol monostearate with FFA content of 25.80% and yield 88.35%.
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