Fermentative biohydrogen production: trends and perspectives |
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| Authors: | Gustavo Davila-Vazquez Sonia Arriaga Felipe Alatriste-Mondragón Antonio de León-Rodríguez Luis Manuel Rosales-Colunga Elías Razo-Flores |
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| Institution: | (1) División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4a, Sección, C.P. 78216 San Luis Potosi, SLP, Mexico;(2) División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4a, Sección, C.P. 78216 San Luis Potosi, SLP, Mexico |
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| Abstract: | Biologically produced hydrogen (biohydrogen) is a valuable gas that is seen as a future energy carrier, since its utilization
via combustion or fuel cells produces pure water. Heterotrophic fermentations for biohydrogen production are driven by a wide
variety of microorganisms such as strict anaerobes, facultative anaerobes and aerobes kept under anoxic conditions. Substrates
such as simple sugars, starch, cellulose, as well as diverse organic waste materials can be used for biohydrogen production.
Various bioreactor types have been used and operated under batch and continuous conditions; substantial increases in hydrogen
yields have been achieved through optimum design of the bioreactor and fermentation conditions. This review explores the research
work carried out in fermentative hydrogen production using organic compounds as substrates. The review also presents the state
of the art in novel molecular strategies to improve the hydrogen production. |
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| Keywords: | Anaerobic conditions Biohydrogen Biomass Bioreactor Dark fermentation Gene manipulation Hydrogenases Hydrogen production Mixed culture |
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