Process for producing hydrogen by alga in alternating light/dark

Details Process for producing hydrogen by alga in alternating light/dark Process for producing hydrogen by alga in alternating light/dark

1982-09-27

1985-07-30

Rosen, Sam

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing element or inorganic compound except carbon dioxide

47 14, 435 42, 435232, 435253, 435946, 435241, C12P 300

Patent

active

045322104

ABSTRACT:
Hydrogen is biologically, effectively produced by an alga in an alternating light/dark cycle which comprises alternating a step for cultivating the alga in water under aerobic conditions in the presence of light to accumulate photosynthetic products in the alga and a step for cultivating the alga in water under microaerobic conditions in the dark to decompose accumulated material by photosynthesis to evolve hydrogen.

REFERENCES:
patent: 3959923 (1973-06-01), Selke
patent: 4148690 (1979-04-01), Weetall
Biochemistry of Industrial Micro-Organisms, Ed. by C. Rainbow and A. H. Rose, Academic Press, 1963, pp. 396-401, Elias Greenbaum, Science, vol. 125, 1/15/82, pp. 291-293.
Greenbaum, "Biotechnology and Bioengineering Symp.", No. 10, pp. 1-13 (1980).

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