Process for recovering L-amino acid from fermentation liquors

Details Process for recovering L-amino acid from fermentation liquors Process for recovering L-amino acid from fermentation liquors

1988-06-24

1991-05-21

Warden, Robert J.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing alpha or beta amino acid or substituted amino acid...

435107, 435108, 435110, 435114, 435115, 435116, C12P 1304

Patent

active

050174800

ABSTRACT:
A process for recovering a high-purity L-amino acid from a fermentation liquor obtained by fermentation or an enzymic method, which comprises removing the impurities contained in said fermentation liquor by passing said fermentation liquor through an ultrafilter membrane and then through an ion-exchange or adsorbent resin; concentrating or cooling the effluent thus obtained to result in crystallization of said L-amino acid, and isolating said crystalline L-amino acid from said fermentation liquor.

REFERENCES:
patent: 3127443 (1964-03-01), Sargent
patent: 4523999 (1985-06-01), Toyoshi et al.
patent: 4663048 (1987-05-01), Tanaka et al.
patent: 4734401 (1988-03-01), Blouin
Chemical Abstracts, vol. 105, Dec. 8, 1986, No. 207531f, Tevelev et al.

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