Process for the biotechnical production of l-malic acid

Details Process for the biotechnical production of l-malic acid Process for the biotechnical production of l-malic acid

C - Chemistry, Metallurgy

12

P

195/131

C12P 7/44 (2006.01) C12P 7/46 (2006.01)

Patent

CA 1209073

ABSTRACT OF THE DISCLOSURE L-Malic acid can be produced, in a concentration of more than 100 g per liter and in a high yield by microbial fermentation by means of freely mobile fungi, from neutralized fumaric acid (more than 110 g per liter) in a preferably nutrient-free solution. Pure L-malic acid in a quality suitable for food and pharmaceuticals can be obtained therefrom in an economical way with great productivity. Fermentation in nutrient-containing fumaric acid solution can be terminated after at most three days; fermentation in nutrient- free fumaric acid solution can be terminated as early as after one day.

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