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US 6,582,939 B1Granted
Process for the preparation of alkaline earth salts of D-pantothenic acid
AssigneeDegussa AG
InventorsMichael Binder, Walter Pfefferle, Ulrich Becker, IIona Walger, Klaus Erich Uffmann, Georg Thierbach, Achim Marx, Thomas Hermann
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Abstract
The preparation of alkaline earth salts of D-pantothenic acid, in which the fermentation is carried out in the presence of alkaline earth compounds.
Claims9
A process for preparing one or more alkaline earth salts of D-pantothenic acid or mixtures containing one or more alkaline earth salts of D-pantothenic acid, from fermentation broths, comprising:
- a) fermenting a microorganism that produces D-pantothenic acid in a fermentation broth wherein one or more alkaline earth compounds selected from the group consisting of calcium oxide, calcium hydroxide, magnesium hydroxide, magnesium oxide and an alkaline earth salt of an organic acid is added to the fermentation broth after 1 to 70 hours of fermentation time have elapsed;
- b) optionally removing all or a portion of the biomass after fermentation is complete;
- c) concentrating the fermentation broth;
- and
- d) obtaining one or more alkaline earth salts of D-pantothenic acid in pure form or as a mixture containing constituents of the fermentation broth.
2 more elements
Dependencies are inferred from the claim text.