Reaktion #574228

Reaktionsgleichung

glucose

potassium

magnesium sulfate

thiamine hydrochloride

biotin

ammonium sulfate

→

L-arginine

Reaktionsbedingungen

Aufarbeitung

1. 1
   Extraktionextract, at pH 7.0
2. 2
   workup.ADDITIONwas charged in an amount of 300 ml
3. 3
   Sonstigeinto separate small sized glass jar fermenters

Vorschrift

An aqueous solution medium having a composition of 10% of glucose, 4% of ammonium sulfate, 0.1% of potassium primary phosphate, 0.04% of magnesium sulfate, 0.001% of ferrous sulfate, 0.001% of manganese sulfate, 100 μg/l of thiamine hydrochloride, 100 μg/l of biotin, 5 ml/dl of Aji-Eki® and 0.2% of yeast extract, at pH 7.0, was charged in an amount of 300 ml into separate small sized glass jar fermenters. After sterilizing in a conventional manner, the various L-arginine-producing bacterial strains shown in Table 12, which had been previously grown in bouillon slants at 30° C. for 24 hours, were inoculated thereon. Then, incubation was carried out at 31.5° C. for 48 hours at 1200 rpm at an aeration rate of 1/2 volume per minute, while keeping the pH at 7.0 by the addition of ammonia gas. After completion of the fermentation, the yield of L-arginine produced and accumulated in the solution based on glucose was determined and is shown in Table 12.

Quelle