L-phenylalanine 1/2 sulfate and its use

Details L-phenylalanine 1/2 sulfate and its use L-phenylalanine 1/2 sulfate and its use

1981-08-11

1983-08-16

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C07C10108

Patent

active

043993044

ABSTRACT:
The present invention relates to L-phenylalanine 1/2 sulfate and its use in the purification of L-phenylalanine from fermentation broths. When the salt is crystallized from a fermentation broth of L-phenylalanine or a solution produced during an intermediate process of recovering L-phenylalanine from the fermentation broth, impurities derived from the fermentation broth are easily removed.

REFERENCES:
patent: 2790001 (1957-04-01), Purvis
patent: 3030380 (1962-04-01), Weygand et al.
patent: 3830836 (1974-08-01), Asai et al.
patent: 3994962 (1976-11-01), Shirai et al.
patent: 4260684 (1981-04-01), Schutt
Ogata et al., Chem. Abst., vol. 84 #106115r (1976).

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