Macroeconomics

Engineering

Bacteria

Biology

Economics

Biochemistry

Biochemical engineering

Genetics

Hydrogen

Physics

Organic chemistry

Environmental chemistry

Environmental science

Astrobiology

Photosynthesis

Chemistry

Microorganism

Phototroph

Hydrogen production

Production (economics)

International Journal of Hydrogen Energy

Hydrogen is a promising alternative to fossil fuel for a source of clean energy due to its high energy content. Some strains of phototrophic microorganisms are known as important object of scientific research and they are being explored to raise biohydrogen (BioH 2 ) yield. BioH 2 null is still not commonly used in industrial area because of the low biomass yield and valuable down streaming process. This article deals with the methods of the hydrogen production with the help of two large groups of phototrophic microorganisms – microalgae and cyanobacteria. Microalgal hydrogen is environmentally friendly alternative to conventional fossil fuels. Algal biomass has been considered as an attractive raw source for hydrogen production. Genetic modified strains of cyanobacteria are used as a perspective object for obtaining hydrogen. The modern photobioreactors and outdoor air systems have been used to obtain the biomass used for hydrogen production. At present time a variety of immobilization matrices and methods are being examined for their suitability to make immobilized H 2 null producers.

Hydrogen production from phototrophic microorganisms: Reality and perspectives