Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et

Max Charpentier

Paul Maldonado

Georges Glikmans

The invention relates to a process for the production of citric and osocitric acids by a culture of a diploid Candida Lipolytica yeast in a nutrient medium containing substances which are sources of carbon, nitrogen, and mineral compounds, the medium containing thiamin in a concentration in excess of 200 micrograms per liter.

Fermentation process for the production of citric and isocitric acids

This invention relates to the production of citric and/or isocitric acids. The production of citric and/or isocitric acids is effected by cultivating a citric and/or isocitric acid-producing yeast in a culture medium containing a compound selected from cyanoacetic acid, and organic and inorganic derivatives thereof. Increased yields of citric and isocitric acids are obtained using a process in accordance with the invention, preferably using a yeast of the genus Candida.

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Montesson, France

Max Charpentier