Biohydrogen

The metabolic process for hydrogen production is dependent on the reduction of the metabolite ferredoxin 

Different Biological Hydrogen Generation Reactions and Associated Microorganisms 

C HijO + 2H2O 4H2 + 2CO2 + 2CH3COOH Anode CH3COOH + 2H2O 2CO2 + 8e + 8H+ Cathode 8H+ + 8e 4H2 BioelectrochemicaKy assisted microbial reactor (BEAMR), reverse process of microbial fuel cell 

For this process to run, ferredoxin has to be recycled through oxidation. The recycling process is dependent on the transfer of electrons from nicotinamide adenine dinucleotide (NADH) to ferredoxin. 

Biophotolysis of water through (a) direct biophotolysis and (b) indirect biophotolysis. 

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Single-strand conformation polymorphism (SSCP) Wastewater bioreactors (including denitrifying and phosphate-removal system, Chinese traditional medicine wastewater treatment system, beer wastewater treatment system, fermentative biohydrogen producing system, and sulfate-reduction system) Microbial community structures, diversity and distribution in different wastewater treatment processes, and relationship between the structures and the status of processes [157]... 

S. Tanisho (2001) A scheme for developing the yield of hydrogen by fermentation in p. 131-140 BIOHYDROGEN II Ed by Miyake J., Matsunaga T., San Pietro A., Pergamon, Oxford... 

M. Miyake, M. Sekine, L. G.. Vasilieva, E. Nakada, T. Wakayama, Y. Asada, J. Miyake (1998) Improvement of bacterial light-dependent hydrogen production by altering the photosynthetic pigment ratio. BioHydrogen, edited by Zaborsky et al. 

T. Otsuki, S. Uchiyama, K. Fujiki, and S. Fukunaga. (1998) Hydrogen production by a floating-type photobioreactor BioHydrogen, edited by Zaborsky et al, 369-374... 

I. Eroglu, K. Aslan, U. Gunduz, M. Yucel, and L.Turker (1998) Continuous hydrogen production by Rhodobacter sphaeroides O.U.OOl. BioHydrogen, edited by Zaborsky et al. 

POSSIBILITIES OF TECHNOLOGICAL METHODS IN SOLUTION OF PROBLEMS RAISED IN BIOHYDROGEN PHOTOPRODUCTION RESEARCH... 

J. S. Rocha, M. J. Barbosa, Wijffels (2001) Hydrogen production by photosynthetic bacteria culture media, yields and efficiencies, In Biohydrogen II. J. Miyake, T Matsunaga, A. San Pietro eds. Pergamon, Amsterdam 3-32... 

K. Sasaki (1998) Hydrogen and 5-aminolevulinic acid production by photosynthetic bacteria. In Biohydrogen. (Zaborsky, ed). London. Plenum Press 151-156... 

A. A. Tsygankov (2001) Hydrogen production by purple bacteria immobilized vs. suspension culture. In Biohydrogen II. An approach to environmentally acceptable technology. (Miyake, Matsunaga, San Pietro Eds). - Amsterdam, Pergamon,. pp. 229-244... 

The low energy density of solar energy places severe economic restrictions on potential light-dependant biohydrogen processes. For example, at very favorable locations the yearly average solar irradiation could be as high as 5 kWh/m2/day which would give 6.6GJ/year. 

The use of such natural hydrogen production machines in combination with the natural process of photosynthesis is the topic of an international NEDO project for the development of a semiartificial device for hydrogen production. On the occasion of the second meeting of all groups involved in this project, an international symposium on Biohydrogen was organized in Kyoto 2002. The state of the art of biohydrogen production from participants of this symposium is summarized in the chapters of this book. 

Simon H, Bader J, Gunther H, Neumann S, Thanos J (1984) Biohydrogenation and elec-tromicrobial and electroenzymatic reduction methods for the preparation of chiral compounds, Ann NY Acad Sci 434 171, and refs therein... 

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