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Patent Searching and Data


Title:
PRODUCTION OF CALCIUM 5'-RIBONUCLEOTIDE
Document Type and Number:
Japanese Patent JPH01207297
Kind Code:
A
Abstract:

PURPOSE: To improve yield and productivity and obtain the title compound, excellent in quality and useful as a raw material for seasoning pharmaceuticals, by slowly adding an aqueous solution of a calcium ion donor to an aqueous solution of a 5'-ribonucleotide under specific conditions.

CONSTITUTION: (A) An aqueous solution of about 0.25W0.63mol 5'-ribonucleotide is adjusted to about pH8.2W8.7 and (B) an aqueous solution of a calcium ion donor at pH7.1W8.5 in an equimolar amount or more (normally 1W3times based on the 5'-ribonucleotide) is slowly added to the resultant aqueous solution while keeping the temperature at about 85W95°C and stirring the solution to produce and crystallize the aimed calcium 5'-ribonucleotide.


Inventors:
SHIBUYA KOUSAKU
TOYODA TAKESHI
Application Number:
JP1988000251420
Publication Date:
August 21, 1989
Filing Date:
October 05, 1988
Export Citation:
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Assignee:
TAKEDA CHEMICAL INDUSTRIES LTD
International Classes:
A23L27/23; C07H19/067; C07H19/167; (IPC1-7): A23L1/229; C07H19/067; C07H19/167