Method of recovering L-threonine from L-threonine fermentation broth using nonsolvent
US8137939B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 27, 2007 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Nov 12, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N1/02
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Provided are a method of recovering L-threonine from the fermentation broth of an L-threonine producing microorganism, comprising: separating microbial bodies from the L-threonine containing fermentation broth obtained by culturing an L-threonine producing microorganism and filtering the separated fermentation broth to obtain a filtrate; concentrating the filtrate; and reacting the concentrated filtrate with a nonsolvent to obtain crystalline L-threonine, crystalline L-threonine recovered by the method, and a feed additive containing the crystalline L-threonine recovered by the method.
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