PROCEDE DE PREPARATION DE L-TRYPTOPHANE ET DE DL-SERINE

PROCEDE DE PREPARATION DE L-TRYPTOPHANE ET DE DL-SERINE

To prepare L-tryptophan and DL-serine, serine-containing discharges from protein hydrolysis or sugar beet processing are fractionated by ion exclusion chromatography. The low-ash serine solutions obtained in this way are concentrated, DL-serine is removed and the concentrated L-serine solutions are...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HANS PLISCHKE, WALTER STEINMETZER
Format: Patent
Sprache:fre
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
HETEROCYCLIC COMPOUNDS
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:To prepare L-tryptophan and DL-serine, serine-containing discharges from protein hydrolysis or sugar beet processing are fractionated by ion exclusion chromatography. The low-ash serine solutions obtained in this way are concentrated, DL-serine is removed and the concentrated L-serine solutions are reacted with indole and a cell suspension containing tryptophan synthetase to give L-tryptophan.