Jia, Boyu published the artcileSelective production of ethyl levulinate from levulinic acid by lipase-immobilized mesoporous silica nanoflowers composite, Quality Control of 539-88-8, the main research area is ethyl levulinate levulinic acid lipase mesoporous silica nanoflower composite.
Mesoporous silica nanoflowers bearing -NH2 groups were synthesized by the hydrolysis of tetra-Et orthosilicate (TEOS) with reverse microemulsion method, following with the grafting of -NH2 groups by the post modification with (3-Aminopropyl) trimethoxysilane (APTMS). The lipase from C. antarctica was immobilized on the as-synthesized amino-grafted mesoporous silica nanoflowers to fabricate the lipase-immobilized mesoporous silica nanoflowers composite, which was applied for the catalytic transformation of biomass-derived levulinic acid to biofuel Et levulinate (EL), and exhibited excellent catalytic activity. An Et levulinate yield as high as 99.5% could be achieved at 40°C in 8 h reaction time, which was much higher than that catalyzed by the free lipase (67.9%) under the identical conditions. The immobilized lipase showed good stability and recyclability that Et levulinate yields above 68% could be remained after seven recycle times. This work represents a novel strategy to construct the immobilized biocatalyst for the production of bio-based chems.
Fuel Processing Technology published new progress about Adsorption. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Quality Control of 539-88-8.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics