VERFAHREN ZUR HERSTELLUNG VON PROTEASE

摘要

Protease is recovered by reacting a first amino acid whose amino group is protected with a protective group with a second amino acid whose carboxyl group is protected with a protective group, in an aqueous medium in the presence of a protease to result a peptide synthesis to deposit the addition compound of a dipeptide and said second C-terminal protected amino acid; dissolving said addition compound by adding an organic solvent to a precipitate separated from the reaction mixture and isolating the protease from an organic solvent suspension or dissolving said addition compound by adding a water immiscible organic solvent and separating the organic solvent phase by a liquid-liquid separation. The addition compound can be dissolved in an organic solvent after separating the precipitate from the reaction mixture. The addition compound can be also dissolved by adding a water-immiscible organic solvent to the reaction mixture and the organic solvent phase can be separated from the aqueous phase.