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Biological hydrogen production (Algae) : ウィキペディア英語版
Biological hydrogen production (Algae)

The biological hydrogen production with algae is a method of photobiological water splitting which is done in a closed photobioreactor based on the production of hydrogen as a solar fuel by algae.〔(2013 - Gimpel JA, et al Advances in microalgae engineering and synthetic biology applications for biofuel production )〕 Algae produce hydrogen under certain conditions. In 2000 it was discovered that if ''C. reinhardtii'' algae are deprived of sulfur they will switch from the production of oxygen, as in normal photosynthesis, to the production of hydrogen.〔(Wired-Mutant Algae Is Hydrogen Factory )〕〔http://www.science.org.au/nova/newscientist/111ns_002.htm〕
==Photosynthesis==
Photosynthesis in cyanobacteria and green algae splits water into hydrogen ions and electrons. The electrons are transported over ferredoxins. Fe-Fe-hydrogenases (enzymes) combine them into hydrogen gas. In ''Chlamydomonas reinhardtii'' Photosystem II produces in direct conversion of sunlight 80% of the electrons that end up in the hydrogen gas.〔 Light-harvesting complex photosystem II light-harvesting protein LHCBM9 promotes efficient light energy dissipation. The Fe-Fe-hydrogenases
need an anaerobic environment as they are inactivated by oxygen. Fourier transform infrared spectroscopy is used to examine metabolic pathways.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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