Process for preparing D-amino acids
AssigneeTanabe Seiyaku Co., Ltd.
InventorsMasakatsu Furui, Eiji Takahashi, Hiroyasu Seko, Takeji Shibatani
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Abstract
Disclosed is a process for preparing a D-amino acid selected from the group consisting of D-methionine, D-valine, D-leucine, D-isoleucine and D-histidine, which comprises the steps of: making a culture or treated culture of a microorganism having ability to asymmetrically degrade a L-amino acid selected from the group consisting of L-methionine, L-valine, L-leucine, L-isoleucine and L-histidine act on a corresponding racemic amino acid to the L-amino acid; and separating and collecting the remaining D-amino acid.
Claims8
A process for preparing a D-amino acid selected from the group consisting of D-valine, D-leucine and D-isoleucine, which comprises the steps of:
- making a culture or treated culture of a microorganism, having ability to asymmetrically degrade a L-amino acid selected from the group consisting of L-valine, L-leucine and L-isoleucine, which acts on a racemic amino acid corresponding to said L-amino acid;
- and
- separating and collecting the remaining D-amino acid;
- wherein the microorganism belongs to Proteus, Providencia or Yarrowia.
Dependencies are inferred from the claim text.