Fumaric Acid → L-Malic Acid

Participants

Reaction Steps

An NH4 fumarate suspension with 400 g/l (calculated as fumaric acid) is introduced in a vessel and set at pH 8.0. The fumarate is first introduced partly in undissolved form. 35 g/l of cell mass (calculated as dry mass)--grown according to example A--is suspended in this liquid. After 36 hours incubation at 32° C., 378 g of L-malic acid per liter of fermentation liquid is produced.

Provenance & Evidence