title: Enzymatic production of glycerol carbonate from by-product after biodiesel manufacturing process.
abstract: Glycerol carbonate is one of the higher value-added products derived from glycerol. In this study, glycerol carbonate (GC) was synthesized by transesterification of glycerol and dimethyl carbonate (DMC) using Novozym 435 (Candida antarctica Lipase B) at various conditions. For the enzymatic production of GC, the optimum conditions were the amount of enzyme (75 g/L), DMC/glycerol molar ratio (2.00), reaction temperature (60°C) and organic solvent (acetonitrile). Experimental investigation of the effect of water content revealed that the conversion of GC was maximized with no added water. The addition of surfactant such as Tween 80 increased the GC conversion, which finally reached 96.25% under the optimum condition and with surfactant addition.
authors: Department of Chemical Engineering, Kwangwoon University, Seoul 139-701, Republic of Korea.
authors: Hongsub
authors: H
authors: Jung
authors: Youngrak
authors: Y
authors: Lee
authors: Daeheum
authors: D
authors: Kim
authors: Sung Ok
authors: SO
authors: Han
authors: Seung Wook
authors: SW
authors: Kim
authors: Jinwon
authors: J
authors: Lee
authors: Yong Hwan
authors: YH
authors: Kim
authors: Chulhwan
authors: C
authors: Park
mesh_terms: D056804:Biofuels; D001709:Biotechnology / Q000379:methods*; D002254:Carbonates / Q000378:metabolism*; D004800:Enzymes, Immobilized / Q000378:metabolism; D004951:Esterification; D005561:Formates / Q000378:metabolism*; D005656:Fungal Proteins / Q000378:metabolism; D005990:Glycerol / Q000378:metabolism*; D008049:Lipase / Q000378:metabolism*; D012997:Solvents
chemical_list: D056804:Biofuels; D002254:Carbonates; D004800:Enzymes, Immobilized; D005561:Formates; D005656:Fungal Proteins; D012997:Solvents; C093667:Novozyme 435; D008049:Lipase; C431349:lipase B, Candida antarctica; C023025:methyl carbonate; D005990:Glycerol