Process for the production of citric acid

Details Process for the production of citric acid Process for the production of citric acid

Category

C - Chemistry, Metallurgy

Subcategory

12

Subsubcategory

P

CPC

195/132

IPC codes

C12P 7/40 (2006.01) C12P 7/48 (2006.01)

Type

Patent

Patent number

CA 1150654

Description

ABSTRACT OF THE DISCLOSURE Process for the production of citric acid, characterized in that E. Coli KG 93, F- is cultivated in a first step for 15-24 hours at a temperature of 20-37° C and a pH of 5.0-7.5 on a substrate consisting of whey permeate to which has been added phosphates is a content of 0.8-1.6 g/l and nitrates in a content of 0.8-1.2 g/l or a corresponding quantity of urea, that H. Wickerhamii CBS 4308 in a second step is cultivated for 20-26 hours at a temperature of 15-35° C and a pH of 4.5-6.5 on the cultivating solution from the first step, whereupon citric acid is obtained from the cultivating solution in a way known per se.

Application Number

303579

Affiliated with

Also associated with

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