The composite amino acids lauryl alcohol ester was synthesized by lauryl alcohol and the composite amino acids from rapeseed meal which was hydrolyzed with hydrochloric acid.

Compared the catalysis of three lipases as biocatalyst to phytosterol laurate in a solvent-free system for pilot study:the Novo435 lipase was selected as biocatalyst, the optimal reaction conditions were confirmed to be 40 ℃, mole ratio of substrates 1:1,enzyme ratio over total weight 15 %, reaction time 24 h, and the yield of esterification was 36.