Production of cytidine 5'-diphosphorylcholine with high utilization of ATP by whole cells of Saccharomyces cerevisiae

Jiapeng Tang, Yong Chen, Xiaochun Chen, Yuelan Yao, Hanjie Ying, Jian Xiong, Jianxin Bai

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Cytidine 5'-diphosphorylcholine (CDP-choline) was produced using a high efficiency ATP regeneration system and the Kennedy pathway in whole cells of Saccharomyces cerevisiae As 2.398. Out of eight variables, KH2PO4, glycerol and (NH4)2SO4 were considered to be the most significant factors by response surface methodology including a Plackett-Burman design, path of steepest accent and central composite design. The optimum levels of the three variables were 20.13g/L KH2PO4, 12.35g/L glycerol and 0.49g/L (NH4)2SO4, respectively. Energy utilization efficiency increased from 10.59% to 16.72% and choline chloride conversion yields increased from 12.35% to 42.78%. A high efficiency ATP regeneration system improves CDP-choline production.

Original languageEnglish
Pages (from-to)8807-8813
Number of pages7
JournalBioresource Technology
Volume101
Issue number22
DOIs
StatePublished - Nov 2010

Keywords

  • ATP regeneration
  • Choline chloride
  • Cytidine 5'-diphosphorylcholine
  • Saccharomyces cerevisiae

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