Research Article

Synthesis of Isopropyl Ferulate Using Silica-Immobilized Lipase in an Organic Medium

Figure 4

Effect of molecular sieves on synthesis of isopropyl ferulate. The esterification was performed for 3 h at 45°C using isopropanol (100 mM) and ferulic acid (25 mM) in DMSO under shaking. A significantly higher (*) yield of isopropyl ferulate was recorded when molecular sieves were added to the reaction cocktail at 100 mg/mL concentration in compassion to the yield recorded at 175–250 mg/mL of molecular sieves using silica-bound biocatalyst ( ).
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