Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
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).
Kabashima Akemi
Kitahara Toshio
Maruyama Hiromasa
Matsuishi Tsutomu
Toyomasu Ryuta
Ajinomoto Company Incorporated
Reamer James H.
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