l-amino acids affect the hydrogenase activity and growth of Ralstonia eutropha H16

Abstract

Keypoints 1 l-AAs supplementation enhanced the biomass of R. eutropha H16. 2 The presence of l-AA during bacterial growth caused a decrease in ORP and pH. 3 l-AA is suggested to promote Hyds synthesis and enzymatic activity by reducing ORP and pH.

Keywords

• l-Amino acids
• Ralstonia eutropha H16
• O2-tolerant Hydrogenases
• H2-oxidizing Hydrogenase activity
• Biocatalysts