Hydrogen production by hyperthermophilic and extremely thermophilic bacteria and archaea : mechanisms for reductant disposal

Hydrogen produced from biomass by bacteria and archaea is an attractive renewable energy source. However, to make its application more feasible, microorganisms are needed with high hydrogen productivities. For several reasons, hyperthermophilic and extremely thermophilic bacteria and archaea are pro...

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Veröffentlicht in:Environmental technology. - 1993. - 31(2010), 8-9 vom: 11. Juli, Seite 993-1003
1. Verfasser: Verhaart, Marcel R A (VerfasserIn)
Weitere Verfasser: Bielen, Abraham A M, van der Oost, John, Stams, Alfons J M, Kengen, Servé W M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Review Hydrogen 7YNJ3PO35Z
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520 |a Hydrogen produced from biomass by bacteria and archaea is an attractive renewable energy source. However, to make its application more feasible, microorganisms are needed with high hydrogen productivities. For several reasons, hyperthermophilic and extremely thermophilic bacteria and archaea are promising is this respect. In addition to the high polysaccharide-hydrolysing capacities of many of these organisms, an important advantage is their ability to use most of the reducing equivalents (e.g. NADH, reduced ferredoxin) formed during glycolysis for the production of hydrogen, enabling H2/hexose ratios of between 3.0 and 4.0. So, despite the fact that the hydrogen-yielding reactions, especially the one from NADH, are thermodynamically unfavourable, high hydrogen yields are obtained. In this review we focus on three different mechanisms that are employed by a few model organisms, viz. Caldicellulosiruptor saccharolyticus and Thermoanaerobacter tengcongensis, Thermotoga maritima, and Pyrococcus furiosus, to efficiently produce hydrogen. In addition, recent developments to improve hydrogen production by hyperthermophilic and extremely thermophilic bacteria and archaea are discussed 
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700 1 |a Bielen, Abraham A M  |e verfasserin  |4 aut 
700 1 |a van der Oost, John  |e verfasserin  |4 aut 
700 1 |a Stams, Alfons J M  |e verfasserin  |4 aut 
700 1 |a Kengen, Servé W M  |e verfasserin  |4 aut 
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