Enzymatic synthesis of tricaprylin in a solvent-free system: lipase regiospecificity as controlled by glycerol adsorption on silica gel
Résumé
Enzymatic synthesis of tricaprylin from caprylic acid (octanoic acid) and glycerol was carried out under solvent-free
conditions. Kinetics of mono-, di- and tricaprylin synthesis and caprylic acid esterification in standard conditions (free
glycerol) were slightly different from those obtained in the case of silica gel adsorbed glycerol. The critical role
of the silica gel which behaves as a “reservoir” is proposed and it was shown that the use of silica gel facilitates
reactions and improves the conversion yields at high glycerol concentrations.
Domaines
Sciences du Vivant [q-bio]
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