Biochemical dehydrogenations of saccharides. VII. 2-Deoxy-D-gluconic acid from 2-deoxy-D-glucose.

Fermentation of a medium containing 5% 2-deoxy-D-glucose and barium carbonate by a strain of Pseudomonas aeruginosa yielded barium 2-deoxy-D-gluconate. The yield was 77% theoretical. The strain in question makes it possible to prepare directly calcium, magnesium, manganese and ferrous salts of 2-deoxy-D-gluconic acid. A treatment of 5% solution of 2-deoxy-D-glucose with commercial glucose oxidase preparation caused also a complete dehydrogenation.