Effects of NADH Availability on 3-Phenyllactic Acid Production by Lactobacillus plantarum Expressing Formate Dehydrogenase

  • Minghua LiEmail author
  • Xiumei Meng
  • Zhiyang Sun
  • Chunjie Zhu
  • Huiying Ji


It is well known that cofactors play a key role in the production of different compounds in bioconversion processes, while the high cost of cofactors limits their usage in industrial applications. In the present study, a NADH regeneration system was successfully developed in Lactobacillus plantarum by expressing the fdh gene coding for formate dehydrogenase (FDH) from Candida boidinii. Results indicated that the FDH was expressed with the highest activity of 0.82 U/mg of protein when cells entered early stationary phase. In addition, the expression of FDH increased the intracellular level of NADH and NADH/NAD+ ratio in L. plantarum, and therefore, enhanced the NADH-dependent production of 3-phenyllactic acid (PLA) in repeated and fed-batch bioconversions. In brief, the results demonstrate that the NADH regeneration by expressing FDH is a promising strategy for producing NADH-dependent microbial metabolites in L. plantarum.



This research was supported by Natural Science Foundation of the Higher Education Institutions of Jiangsu Province (Grant no. 16KJB180033).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Minghua Li
    • 1
    • 2
    Email author
  • Xiumei Meng
    • 3
  • Zhiyang Sun
    • 3
  • Chunjie Zhu
    • 1
    • 2
  • Huiying Ji
    • 1
  1. 1.School of Pharmaceutical EngineeringJiangsu Food and Pharmaceutical Science CollegeHuai’anChina
  2. 2.Jiangsu Engineering Laboratory of Protein DrugsHuai’anChina
  3. 3.School of Food, Jiangsu Food and Pharmaceutical Science CollegeHuai’anChina

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