PROCESS FOR PREPARING D-ALANINE

Title:

PROCESS FOR PREPARING D-ALANINE

Document Type and Number:

WIPO Patent Application WO/1988/006188

Kind Code:

A1

Abstract:

A process for preparing D-alanine, which comprises culturing a particular yeast belonging to any of the genera Candida, Saccharomycopsis, Pichia, Torulopsis, Cryptococcus, Hansenula or Trichosporon and capable of digesting L-alanine and substantially not digesting D-alanine under acidic conditions using a medium containing DL-alanine as a substantially sole carbon and nitrogen source. This process permits supply of a high concentration of DL-alanine to the medium and enables D-alanine to be obtained efficiently in a high yield in a short time. After the completion of the culture, the medium contains scarcely any other organic by-products and organic impurities, thus facilitating isolation and purification of D-alanine.

Inventors:

ITO NORIKO (JP)
IMAMURA SHINZO (JP)
SATO HARUYO (JP)

Application Number:

PCT/JP1988/000139

Publication Date:

August 25, 1988

Filing Date:

February 12, 1988

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

C12P13/06; C12P41/00; C12R1/645; C12R1/72; C12R1/78; C12R1/84; C12R1/85; C12R1/88; (IPC1-7): C12P41/00

Foreign References:

JPH04220683B

Other References: