Process for the manufacture of 2-keto-L-gulonic acid
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United States of America Patent
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Aug 15, 2006
Grant Date -
Jan 27, 2005
app pub date -
Aug 2, 2002
filing date -
Aug 15, 2001
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Abstract
The present invention discloses a process for producing sodium 2-keto-L-gulonate from sorbitol and recovering 2-keto-L-gulonic acid in high recovery yields, by controlled cation exchange treatment of the micro-organism free fermentation broth and/or adjusting PII of said purified fermentation broth, followed by direct crystallisation of 2-keto-L-gulonic acid monohydrate.
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