PROCESS FOR ESTERIFICATION OF .alpha.-L-ASPARTYL-L- PHENYLALANINE

摘要

Case 2148/2 PROCESS FOR ESTERIFICATION OF .alpha.-L-ASPARTYL-L-PHENYLALANINE A process for selectively esterifying .alpha.-L-aspartyl- L-phenylalanine to the corresponding alkyl esters using a proteolytic enzyme with specific esterase activity is described. The process is carried out in an aqueous-alcohol medium in which the alcohol concentration is sufficient to reverse the esterase activity. The .alpha.-L-aspartyl-L-phenylalanine alkyl esters so produced are useful as artificial sweeteners.