Abstract
The production of 2-keto-D-gluconic acid from glucose and also from gluconic acid by Pseudomonas species was at one time considered to be a feature which differentiated these organisms from Acetobacter species. Bernhauer and co-workers1–3 showed, however, that twelve species of Acetobacter produced from glucose a strongly reducing acid which formed a soluble calcium salt. They assumed that this substance was either 2-ketogluconic acid, or aldehydogluconic acid, or a mixture of both, because they were able, from cultures of A. gluconicum and of A. suboxydans, to isolate and to characterize 2-ketogluconic acid, and because aldehydo-gluconic acid was isolated from cultures of A. gluconicum and A. xylinum.
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References
Bernhauer, K., and Görlich, B., Biochem. Z., 280, 367 (1935).
Bernhauer, K., and Knobloch, H., Biochem. Z., 303, 308 (1939).
Riedl-Tu̇mová, E., and Bernhauer, K., Biochem. Z., 320, 472 (1950).
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KULKA, D., HALL, A. & WALKER, T. Formation of 2-keto-D-Gluconic Acid, 5-keto-D-Gluconic Acid, and Tartronic Acid by Acetobacter Species. Nature 167, 905–906 (1951). https://doi.org/10.1038/167905b0
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DOI: https://doi.org/10.1038/167905b0
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