Process for producing glycine

Details Process for producing glycine Process for producing glycine

2005-07-12

2005-07-12

Lilling, Herbert J. (Department: 1651)

Chemistry: molecular biology and microbiology

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

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

Reexamination Certificate

active

06916638

ABSTRACT:
Disclosed is a method for producing glycine, which comprises subjecting an aqueous solution of glycinonitrile to a hydrolysis reaction in a hydrolysis reaction system under the action of a microbial enzyme, thereby converting the glycinonitrile to glycine while by-producing ammonia, wherein the hydrolysis reaction system contains at least one organic impurity compound inhibiting the microbial enzyme, wherein the organic impurity compound has a molecular weight of 95 or more and contains at least one member selected from the group consisting of a nitrile group, a carboxyl group, an amide group, an amino group, a hydroxyl group and a trimethyleneamine structure, and wherein the hydrolysis reaction is performed under conditions wherein, during the hydrolysis reaction, the content of the organic impurity compound inhibiting the microbial enzyme in the hydrolysis reaction system is maintained at a level of 10% by weight or less, based on the weight of the hydrolysis reaction system.

REFERENCES:
patent: 3940316 (1976-02-01), Commeryras et al.
patent: 5079380 (1992-01-01), Thunberg
patent: 5238827 (1993-08-01), Shimizu et al.
patent: 5932454 (1999-08-01), Matsuoka et al.
patent: 0187680 (1986-07-01), None
patent: 0332379 (1989-09-01), None
patent: 0450885 (1991-10-01), None
patent: 03280895 (1991-12-01), None
patent: WO 80/01571 (1980-08-01), None
Ingvorsen et al., Ciba Foundation Symposium, vol. 140, pp. 16-31, (1988).

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