Title:
METHOD FOR PRODUCING D-LACTIC ACID, AND METHOD FOR INCREASING OPTICAL PURITY OF D-LACTIC ACID OR YIELD OF D-LACTIC ACID RELATIVE TO SUGAR IN LACTIC ACID
Document Type and Number:
WIPO Patent Application WO/2010/084972
Kind Code:
A1
Abstract:
Disclosed is a method for producing D-lactic acid by allowing a microorganism to utilize a purified treacle and culturing the microorganism. Also disclosed is a method for increasing the optical purity of D-lactic acid in lactic acid. Specifically disclosed is a method for producing D-lactic acid by allowing a microorganism to utilize a treacle and culturing the microorganism, which involves a step of purifying the treacle by means of an ion exchange technique. The method enables the efficient production of lactic acid which contains D-lactic acid having an optical purity of 99.40 % e.e. or more.
Inventors:
MATSUSHIMA Tokuo (12-5-13 NishimachiMinami, Nishi-ku, Sapporo-sh, Hokkaido 62, 〒0630062, JP)
松島 得雄 (〒62 北海道札幌市西区西町南１２丁目５番１３号株式会社アグリバイオインダストリ内 Hokkaido, 〒0630062, JP)
松島 得雄 (〒62 北海道札幌市西区西町南１２丁目５番１３号株式会社アグリバイオインダストリ内 Hokkaido, 〒0630062, JP)
Application Number:
JP2010/050852
Publication Date:
July 29, 2010
Filing Date:
January 22, 2010
Export Citation:
Assignee:
AGRIBIOINDUSTRY INC. (12-5-13, NishimachiMinami Nishi-ku, Sapporo-sh, Hokkaido 62, 〒0630062, JP)
株式会社アグリバイオインダストリ (〒62 北海道札幌市西区西町南１２丁目５番１３号 Hokkaido, 〒0630062, JP)
MATSUSHIMA Tokuo (12-5-13 NishimachiMinami, Nishi-ku, Sapporo-sh, Hokkaido 62, 〒0630062, JP)
株式会社アグリバイオインダストリ (〒62 北海道札幌市西区西町南１２丁目５番１３号 Hokkaido, 〒0630062, JP)
MATSUSHIMA Tokuo (12-5-13 NishimachiMinami, Nishi-ku, Sapporo-sh, Hokkaido 62, 〒0630062, JP)
International Classes:
C12P7/56; B01D61/44; B01J39/04
Attorney, Agent or Firm:
SAGAWA Shingo et al. (Sagawa Shingo International Patent Office, 3rd-floor DENTSU-KOSAN-SAPPORO-Building11-1, Odori-Nishi 5-chome, Chuo-k, Sapporo-shi Hokkaido 42, 〒0600042, JP)