2,5-diketo-D-gluconic acid → 2,5-diketo-D-gluconic acid

HRID 1973619

Reaktionsgleichung

Reaktionsgleichung von HRID 1973619
[CH2:1]([OH:13])[C:2]([C@@H:4]([OH:12])[C@H:5]([OH:11])[C:6]([C:8](O)=[O:9])=[O:7])=[O:3].[CH2:14]([OH:26])[C@H:15]([OH:25])[C@@H:16]([OH:24])[C@H:17]([OH:23])[C:18]([C:20]([OH:22])=[O:21])=[O:19]>>[O:9]=[CH:8][C@@H:6]([C@H:5]([C@@H:4]([C@@H:2]([CH2:1][OH:13])[OH:3])[OH:12])[OH:11])[OH:7].[CH2:14]([OH:26])[C:15]([C@@H:16]([OH:24])[C@H:17]([OH:23])[C:18]([C:20]([OH:22])=[O:21])=[O:19])=[O:25]

Komponenten

4

Edukt 2

HCID 1022872,5-diketo-D-gluconic acid2×HCID 1024242-keto-L-Gulonic acid

Produkt 2

HCID 1022872,5-diketo-D-gluconic acidHCID 107526(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal

Versuchsvorschrift

The present inventors have now found the fact that the 2,5-diketo-D-gluconic acid producing strain and the 2-keto-L-gulonic acid producing strain can coexist in the same fermentation broth and that the 2,5-diketo-D-gluconic acid produced from D-glucose by the 2,5-diketo-D-gluconic acid producing strain accumulated in a crude state, can be utilized by the 2-keto-L-gulonic acid producing strain without any disadvantages, and that the aforesaid undesired optical isomer which is by-produced along with the end product by the 2-keto-L-gulonic acid producing strain is, actually, not accumulated in the broth; the by-produced 2-keto-D-gluconic acid is converted again into 2,5-diketo-D-gluconic acid by the 2,5-diketo-D-gluconic acid producing strain for the repeated utilization by the 2-keto-L-gulonic acid producing strain.

Quellen und Nachweise

ORD-Eintrag
ord-c1632a6f4e724630bf8994f39b92f759
Quelldatensatz
uspto-grants-1976_12
Patentnummer
US03998697

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