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Title:
METHOD FOR RECOVERY OF VITAMIN K2
Document Type and Number:
Japanese Patent JP3911282
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a method for easily recover vitamin K2.
SOLUTION: The vitamin K2 recovering method comprises a step to treat a vitamin K2-containing specimen with chitosan and a step to extract the vitamin K2 adsorbed to chitosan with an organic solvent. The vitamin K2-containing specimen is preferably a cultured liquid of Bacillus natto.


Inventors:
Takaoka Shinsaku
Application Number:
JP2006166415A
Publication Date:
May 09, 2007
Filing Date:
June 15, 2006
Export Citation:
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Assignee:
Japan Biological Science Institute Co., Ltd.
International Classes:
C12P7/66; C07C46/10; C07C50/14; C09K15/08
Domestic Patent References:
JP11092414A
JP8073396A
JP47010019A
Other References:
Biotechnol Prog 8 p.179-186 (1992)
Attorney, Agent or Firm:
Hiromichi Nanjo