A monoacylglycerol is a glycerol with only one fatty acid esterified to it. Monoacylglycerol can be produced by digestion of a diacylglycerol by diacylglycerol lipase. Hydrolysis of the monoacylglycerol, catalyzed by monoacylglycerol lipase, yields glycerol and a free fatty acid, as follows: