紅色光合成細菌を利用した水素発生系の構築(OS.2 バイオエンジニアリング)

概要

論文の詳細を見る
Solar energy, which is fundamental to most energy forms utilized by human, ranging from food to petroleum, is best fixed by photosynthesis. Purple photosynthetic bacteria is a group of unicellular organisms that transform solar energy into chemical form stored in organic matter. Nitrogenase, besides of its intended function to fix nitrogen into ammonium, inevitably evolve hydrogen by reducing proton. While a system to recover the loss from hydrogen evolution by utilizing uptake hydrogenase exist, some purple photosynthetic bacteria let hydrogen evolve to ballast their surplus reduction energy. By controlling the electron transfer system of these bacteria, we are constructing a system that enhance hydrogen evolution rather than letting them store energy in the cells. We tried several carbon sources and varied pH to maximize hydrogen evolution. We are constructing a mutant with enhanced hydrogen evolution by altering its electron transfer components.
社団法人日本機械学会の論文
2004-03-03