Fig. 2From: Enzymatic synthesis of a novel solid–liquid phase change energy storage material based on levulinic acid and 1,4-butanediolThe GC chromatograms of the products during enzymatic esterification. 0—stands for LA (1.842 min); 1—stands for monosubstituted BDO esters (3.658 min); 2—stands for disubstituted BDO esters (6.288 min)Back to article page