Process for purification of a sialic acid from a fermentation broth

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United States of America Patent

PATENT NO 11834691
APP PUB NO 20200332325A1
SERIAL NO

16765407

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Abstract

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The present invention describes an efficient way to isolate a sialic acid from a fermentation broth. The sialic acid contained in the fermentation broth is produced by bacterial fermentation. The inventive process comprises a step of removing biomass from the fermentation broth, a step of subjecting the resulting solution to at least one of a cationic ion exchanger treatment and an anionic ion exchanger treatment and a step of removing salts after the ion exchanger treatment. The process can provide the sialic acid in spray-dried form as well as in form of sialic acid crystals.

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Patent Owner(s)

Patent OwnerAddress
CHR HANSEN A/S2970 HOERSHOLM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Helfrich, Markus Bad Hoenningen, DE 13 15
Jennewein, Stefan Bad Honnef, DE 66 130

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