Sorbitol → L-Ascorbic Acid

Participants

Reaction Steps

A series of resting cell reactions (0.5 ml reaction mixture in 5 ml reaction tube) was carried out with 2% D-sorbitol or with 2% L-sorbose, and all reaction mixtures further contained 0.3% NaCl, 1% CaCO3 and cells at a final concentration of 5 absorbance units at 600 nanometers (OD600). After 20 h incubation time, G. oxydans DSM 17078 produced 270 mg/l or 670 mg/l of Vitamin C, respectively from 2% D-sorbitol or 2% L-sorbose, respectively. In comparison, strain G. oxydans DSM 17078-SMS 05::Km produced 1540 mg/l or 1990 g/l of Vitamin C, respectively.

Provenance & Evidence