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US 7,247,468 B2Granted
Method for producing optically active 1,2-diols by microorganism culturing
AssigneeDaiso Co., Ltd.
InventorsToshio Suzuki, Kouji Nishikawa, Atsushi Nakagawa
Life of this patent
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Abstract
A method for producing an optically active compound comprising: a first step of culturing a microorganism capable of assimilating either the R-isomer or the S-isomer of a compound represented by Formula (1): wherein R is a methyl, ethyl, propyl, chloromethyl, or hydroxyethyl group, in a culture medium whose Ca2+ concentration at the beginning of culturing is controlled and which contains a racemic mixture of the compound as a carbon source; and a second step of recovering the optically active compound remaining in the culture broth.
Claims10
A method for producing an optically active compound comprising:
- a first step of culturing a microorganism belonging to the genus Pseudomonas capable of assimilating either the R-isomer or the S-isomer of a compound represented by Formula (1):
- wherein R is a methyl, ethyl, propyl, chloromethyl, or hydroxyethyl group, in a culture medium whose Ca2+ concentration at the beginning of culturing is 5 to 40 ppm and which contains a racemic mixture of the compound as a carbon source;
- and
- a second step of recovering the optically active compound remaining in the culture broth.
1 more element
Dependencies are inferred from the claim text.