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Bioresources and Bioprocessing

Table 1 Influence of DMSO on the stereoselective electroreduction of 7K-LCA

From: Preparation of ursodeoxycholic acid from 7-ketone lithocholic acid by stereoselective electroreduction

No.

DMSO content (mM)

Supporting electrolyte

Conversion of 7K-LCAa (%)

Yield of UDCAa (%)

1

–

KBr

48

18.8

2

107.5

KBr

88.5

72.8

3

317.6

KBr

92.5

16.6

4

521.5

KBr

51.7

20.1

  1. Cathode: lead; anode: titanium-ruthenium mesh; 7K-LCA concentration: 0.04 M; supporting electrolyte concentration: 0.08 M; current density: 2.1 mA cm−2; temperature: 65 °C
  2. aConversion based on the starting material and the purity of UDCA determined by HPLC analysis
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