Engineering a carboxypeptidase from Aspergillus niger M00988 by mutation to increase its ability in high Fischer ratio oligopeptide preparation.

Abstract excerpt

High Fischer ratio oligopeptides have better conditioning effects on chronic diseases caused by long-term sub-health. At present, the enzymatic method for producing high Fischer ratio oligopeptides has a low yield, complicated purification, and a high cost. The use of exopeptidases with specific catalytic activity for aromatic amino acids in the preparation of high Fischer ratio oligopeptides is an important...

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