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- W2913346424 endingPage "101038" @default.
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- W2913346424 abstract "Levulinic acid, being one the most important building block precursors, is of prime importance in a variety of industries. The esters of levulinic acid have significant applications in fields of flavor and fragrance. In this study, surface functionalized SBA-15 was used to immobilize Candida antarctica lipase B for the production of different alkyl levulinates. APTS (3-aminopropyl) triethoxysilane functionalized SBA-15 was used to immobilize lipase (Lip) cross-linked with GLU (glutaraldehyde) (named SBA-15-APTS-GLU-Lip). Various aspects of the immobilized catalyst were studied including surface area analysis, morphology, stability using XRD, SEM, TEM, and FTIR techniques. Process optimization of the model reaction of levulinic acid and isoamyl alcohol was done for the production of isoamyl levulinate. The highest conversion of 94% was achieved within 2 h at 50 °C. The kinetics was found to obey ternary dead end complex mechanism with isoamyl alcohol inhibition. The results indicate that the synthesized biocatalyst shows high operational stability and reusability up to 4 cycles." @default.
- W2913346424 created "2019-02-21" @default.
- W2913346424 creator A5063648631 @default.
- W2913346424 creator A5078078206 @default.
- W2913346424 date "2019-03-01" @default.
- W2913346424 modified "2023-10-12" @default.
- W2913346424 title "Surface functionalization of SBA-15 for immobilization of lipase and its application in synthesis of alkyl levulinates: Optimization and kinetics" @default.
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- W2913346424 doi "https://doi.org/10.1016/j.bcab.2019.101038" @default.
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