Modulation of sulfate permease for photosynthetic hydrogen...

Details Modulation of sulfate permease for photosynthetic hydrogen... Modulation of sulfate permease for photosynthetic hydrogen...

C - Chemistry, Metallurgy

12

N

C12N 15/55 (2006.01) C07H 21/00 (2006.01) C12N 1/00 (2006.01) C12N 1/12 (2006.01) C12N 1/20 (2006.01) C12N 9/00 (2006.01) C12N 9/14 (2006.01) C12N 15/11 (2006.01) C12P 1/00 (2006.01) C12P 3/00 (2006.01) C12P 39/00 (2006.01) C12Q 1/37 (2006.01)

Patent

CA 2472765

Sustained hydrogen production is obtained by the culturing of a genetically modified algae, where the ability of the chloroplasts to intake sulfate is reduced or eliminated compared to wild-type algae (Figure 6). The genetically modified algae are cultured in a sealed environment in a liquid or solid culture medium that contains sulfur, and hydrogen is generated continuously. Alternatively, the algae may be cultured in the presence of bacteria that also produce hydrogen gas. The hydrogen produced can be collected and used as a clean energy source.

Selon l'invention, une production soutenue d'hydrogène est obtenue par culture d'une algue génétiquement modifiée dans laquelle la capacité des chloroplastes à assimiler du sulfate est réduite ou éliminée, en comparaison d'algue de type sauvage. L'algue est cultivée dans un environnement étanche, dans un milieu liquide ou solide contenant du soufre, et de l'hydrogène est produit en continu. Dans un autre mode de réalisation, l'algue peut être cultivée en présence d'une bactérie qui produit aussi de l'hydrogène gazeux. L'hydrogène produit peut être récupéré et utilisé en tant que source d'énergie propre.

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