Prolonged Photo-Hydrogen Production by Rhodospirillum rubrum

概要

論文の詳細を見る
Nitrogen sources readily available at low cost were tested for prolongation of photo-hydrogen production using Rhodospirillum rubrum.Hydrogen production of this bacterium was found to be catalyzed by nitrogenase. In a nitrogen free medium, usually used for photo-hydrogen production, nitrogenase activity reached the maximum 12 to 16 h after the inoculation and thereafter decreased rapidly in an exponential manner.To maintain the nitrogenase activity for a long period, the effects of ammonium sulfate and nitrogen gas were examined. Addition of a small amount of ammonium sulfate or nitrogen gas could extend the period of hydrogen production. In the simulated day-and-night system of 12 h light and 12 h dark intervals, hydrogen production was extended and sustained for more than two weeks with the repeated supply of these nitrogen sources at the beginning of each dark period.
公益社団法人日本生物工学会の論文
1982-06-25