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公开(公告)号：US20250002952A1
公开(公告)日：2025-01-02
申请号：US18709817
申请日：2021-11-29
Applicant: WACKER CHEMIE AG
Inventor： Rupert PFALLER , Thomas SCHLÖSSER , Günter WICH
Abstract: Methods and processes for preparing L-cysteic acid. Where according to the process, acetyl-L-serine (OAS) is converted using at least one enzyme selected from the class of O-acetyl-L-serine sulfhydrylases (OAS sulfhydrylases, EC 4.2.99.8) in the presence of a salt of sulfurous acid. Where the OAS sulfhydrylase is CysM and the biotransformation is carried out under active pH control and the OAS concentration in the batch is at least 10 g/L.
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