Preparation of Monoacylglycerol and Diacylglycerol through Glycerolysis of Triacylglycerol
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Abstract:
Monoacylglycerol (MAG) and diacylglycerol (DAG) were widely used in food, pharmaceutical and organic synthesis industries. Their preparation has been therefore paid much attention. Glycerolysis of triacylglycerol (TAG) is the primary reaction route for MAG and DAG preparation due to the easy access of TAG and glycerol. In this paper, production of MAG and DAG through glycerolysis of TAG was reviewed; merits and drawbacks of chemical glycerolysis and enzymatic glycerolysis were compared. Enzymatic glycerolysis of TAG was generally carried out at about 60 ℃ in which TAG and glycerol were immiscible, leading to the difficult proceed of the reaction. Suitable reaction medium could greatly enhance the reaction speed, and some reaction mediums also played a great role in the selectivity of the target product. Presently, ion liquid had proved potentially for glycerolysis of TAG, in terms of reaction progress and reaction selectivity.
