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Issue
Korean Chemical Engineering Research,
Vol.57, No.4, 501-506, 2019
Synthesis of Acetins from Glycerol using Lipase from Wheat Extract
Pradima J, Kulkarni RM, Narula A, Sravanthi V, Rakshith R, Nizar NR
New technology-driven biocatalysts are revolutionizing the biochemical industries. With maximum utilization of renewable feedstock, biocatalysts have been the basis for a major breakthrough. Lipases are the most widely established catalysts used for hydrolysis, esterification and transesterification reactions. In this research, a biochemical process that combines extraction of lipase enzyme from germinated wheat seeds and its application to valorize glycerol to acetins by esterification is presented. Acetins are among highly rated, value-added products derived from glycerol. The favorable conditions for the enzymatic conversion of glycerol were observed as glycerol to acetic acid molar ratio (1:5), reaction temperature (40 °C) and the amount of enzyme (20% v/v). 65.93% of glycerol conversion was achieved for duration of 15 h with the use of tert-butanol solvent. This method proposes to explore the viability of a biological route to convert glycerol derived from biodiesel industry to acetins with further streamlining.
Keywords: Glycerol; Fuel additives; Enzyme catalysts; Kinetics; Lipase
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