Process for producing L-tryptophan, and a pure culture of a micr

Details Process for producing L-tryptophan, and a pure culture of a micr Process for producing L-tryptophan, and a pure culture of a micr

1981-06-09

1982-12-14

Shapiro, Lionel M.

Chemistry: molecular biology and microbiology

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

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

435253, 435839, C12P 1322, C12N 120, C12R 1125

Patent

active

043638759

ABSTRACT:
In a process for producing L-tryptophan which comprises cultivating an L-tryptophan-producing mutant of Bacillus subtilis under aerobic conditions in a nutrient culture medium containing anthranilic acid, a carbon source, a nitrogen source and a mineral source, and recovering the resultant L-tryptophan from the culture broth, the improvement wherein the mutant is a strain resistant to 5-fluorotryptophan and 8-azaguanine; and a pure culture of a microorganism strain used in said process.

REFERENCES:
patent: 3700558 (1972-10-01), Thiemann et al.
patent: 3700559 (1972-10-01), Shiio et al.
patent: 3801457 (1974-04-01), Arima et al.
patent: 3849251 (1974-11-01), Nakayama et al.
Bazzicalupo et al., Chemical Abstracts, vol. 92, 143110w (1980).

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