Catalytic Synthesis of Glycerol Esters
Summary
The catalytic synthesis of glycerol esters encompasses the formation of mono-, di- and triglycerides through the esterification of glycerol with fatty acids or their esters. This process transforms surplus glycerol, generated as a by-product of biodiesel production, into higher-value compounds used as emulsifiers, surfactants and pharmaceutical intermediates. Catalysis strategies range from homogeneous acid catalysts to heterogeneous solid acids, mesoporous materials and immobilised enzymes. Key parameters such as temperature, molar ratio, catalyst acidity and porosity govern activity, selectivity and yield. Advances in mesostructured catalysts and metal-oxide systems have improved conversion rates while enabling catalyst recovery and reuse. Recent efforts have focused on tailoring surface acidity, designing hydrophobic pore environments and employing green reaction conditions to meet industrial demands. These developments support sustainable chemical processes, valorisation of biomass and the circular economy.
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Catalytic Synthesis of Glycerol Esters publication trend
The graph below shows the total number of articles in catalytic synthesis of glycerol esters across all publications each year (not limited to Nature Index journals).
Technical terms
Esterification: Chemical reaction between an acid and an alcohol to form an ester and water.
Heterogeneous catalyst: Solid catalyst that facilitates reactions without dissolving in the reactants.
Mesoporous material: Solid with uniform pores of 2–50 nanometres that offer high surface area.
Monoacylglycerol (MAG): Glycerol molecule esterified at one hydroxyl group, used as emulsifiers.
Regioselectivity: Preference for reaction at one position on a molecular framework over others.
References
- Production of mono-, di-, and triglycerides from waste fatty acids through esterification with glycerol. Advances in Bioscience and Biotechnology (2013).
- Esterification of Glycerol With Oleic Acid Over Hydrophobic Zirconia-Silica Acid Catalyst and Commercial Acid Catalyst: Optimization and Influence of Catalyst Acidity. Frontiers in Chemistry (2019).
- Effect of Surface Modifications of SBA-15 with Aminosilanes and 12-Tungstophosphoric Acid on Catalytic Properties in Environmentally Friendly Esterification of Glycerol with Oleic Acid to Produce Monoolein. Catalysts (2018).
- A Comparison of Monoglyceride Production from Microalgaelipids and Rapeseed Oil Catalyzed by Metal Oxides. ChemSusChem (2024).
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