Production of Molecular Hydrogen by Rhodopseudomonas sp.

概要

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A photosynthetic bacterium, strain TN3,the best strain isolated in the Sendai area with respect to hydrogen evolution, was found to belong to Rhodopseudomonas sp. When DL-malate and L-glutamate were used as electron donor and nitrogen source, respectively, the maximum rate of hydrogen production was approximately 80 μl/hr/mg dry cells. To examine the feasibility of commercial hydrogen production by photosynthetic bacteria, we measured hydrogen production by strain TN3 under three sets of conditions : 1) continuous illumination in stirred culture, 2) continuous illumination without stirring, and 3) periodic illumination (12-hr intervals) without stirring. When DL-lactate and L-glutamate were used as electron donor and nitrogen source, the conversion efficiency of lactate to molecular hydrogen under these conditions was respectively 74.5%, 66.0%, and 56.8% of the theoretical value (6 moles of hydrogen formed per mole of lactate).
社団法人日本生物工学会の論文
1981-06-25