PROCESS FOR PREPARING HYDROXY-L-PROLINE OR N-ACETHYL-HYDROXY-L-PROLINE FORM HYDROLYZED GELATIN

摘要

A process of preparing hydroxy-L-proline starting from hydrolyzed animal gelatin, the improvement which comprises acetylating the hydrolyzed gelatin compounds, benzoylating the acetylated solution, separating N-acetyl-O-benzoyl-hydroxy-L-proline from this solution and then hydrolyzing in alkaline or acidic medium.