Biohydrogen production of obligate anaerobic archaeon Thermococcus onnurineus NA1 under oxic conditions via overexpression of frhAGB-encoding hydrogenase genes.

ABSTRACT:

Background

The production of biohydrogen (H₂) as a promising future fuel in anaerobic hyperthermophiles has attracted great attention because H₂ formation is more thermodynamically feasible at elevated temperatures and fewer undesired side products are produced. However, these microbes require anoxic culture conditions for growth and H₂ production, thereby necessitating costly and time-consuming physical or chemical methods to remove molecular oxygen (O₂). Therefore, the development of an O₂-tolerant strain would be useful for industrial applications.

Results

In this study, we found that the overexpression of frhAGB-encoding hydrogenase genes in Thermococcus onnurineus NA1, an obligate anaerobic archaeon an

SUBMITTER: Lee SH 

PROVIDER: S-EPMC6367845 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature