2-Keto-L-gulonic Acid Fermentation

Part IV. L-Sorbose Metabolism in Pseudomonas aeruginosa

Abstract

L-Sorbose metabolism in Pseudomonas aeruginosa IFO 3898 was studied. When the strain was cultivated in L-sorbose medium, L-idonic and 2-keto-L-gulonic acids were detected in the culture broth.
From the results on the metabolism of various sugars and sugar acids with the cell
suspension and the metabolites accumulated, the following pathway was proposed for the
L-sorbose metabolism in Ps. aeruginosa IFO 3898.
L-Sorbose→L-idose→L-idonic acid→2-keto-L-gulonic acid.