Thermophilic Hydrogen Production from Renewable Resources: Current Status and Future Perspectives

Raj, Subramanian; Talluri, Suvarna; Christopher, Lew
June 2012
BioEnergy Research;Jun2012, Vol. 5 Issue 2, p515
Academic Journal
Hydrogen (H) is considered an alternative fuel of the future due to its high energy density and non-polluting nature. H energy provides many advantages over fossil fuels in that it is renewable, eco-friendly, and efficient. The global demand for H is increasing significantly; however, matching the supply of cost-competitive H to meet the current demand is a major technological barrier. H can be produced from lignocellulosic biomass and serve as a raw material for the synthesis of many industrially important chemicals. The use of thermophilic bacteria for biological production of H appears to be a promising alternative route to the current H production technologies. However, the carbon and H production metabolisms in most thermophilic bacteria have not yet been completely understood. This paper summarizes the recent research progress made toward understanding the carbon utilization for H production and developing gene manipulation techniques to enhance the H production capabilities in thermophilic bacteria. It reviews the current status, future directions and opportunities that thermophiles can offer to enable a cost-competitive and environmentally benign H production bioprocess.


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