scholarly journals Review of Continuous Fermentative Hydrogen-Producing Bioreactors from Complex Wastewater

10.5772/65548 ◽  
2017 ◽  
Author(s):  
Paula Rúbia Ferreira Rosa ◽  
Edson Luiz Silva
Keyword(s):  
Fermentative Hydrogen

Photo-fermentative hydrogen production in a 4 m 3 baffled reactor: Effects of hydraulic retention time

2017 ◽  
Vol 239 ◽  
pp. 533-537 ◽  
Author(s):  
Quanguo Zhang ◽  
Chaoyang Lu ◽  
Duu-Jong Lee ◽  
Yu-Jen Lee ◽  
Zhiping Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Fermentative Hydrogen Production ◽  
Fermentative Hydrogen

A review on fermentative hydrogen production from dairy industry wastewater

2014 ◽  
Vol 89 (11) ◽  
pp. 1627-1636 ◽  
Author(s):  
Dogan Karadag ◽  
Oguz Emre Köroğlu ◽  
Bestami Ozkaya ◽  
Mehmet Cakmakci ◽  
Sonia Heaven ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Dairy Industry ◽  
Fermentative Hydrogen Production ◽  
Fermentative Hydrogen ◽  
Industry Wastewater

scholarly journals Identification of the ATPase Subunit of the Primary Maltose Transporter in the Hyperthermophilic Anaerobe Thermotoga maritima

2017 ◽  
Vol 83 (18) ◽  
Author(s):  
Raghuveer Singh ◽  
Derrick White ◽  
Paul Blum
Keyword(s):  
Thermotoga Maritima ◽  
Mutant Cell ◽  
Sugar Metabolism ◽  
Genetic System ◽  
Gene Replacement ◽  
Atpase Subunit ◽  
Content Type ◽  
Fermentative Hydrogen Production ◽  
Atpase Subunits ◽  
Fermentative Hydrogen

ABSTRACT Thermotoga maritima is a hyperthermophilic anaerobic bacterium that produces molecular hydrogen (H2) by fermentation. It catabolizes a broad range of carbohydrates through the action of diverse ABC transporters. However, in T. maritima and related species, highly similar genes with ambiguous annotation obscure a precise understanding of genome function. In T. maritima, three putative malK genes, all annotated as ATPase subunits, exhibited high identity to each other. To distinguish between these genes, malK disruption mutants were constructed by gene replacement, and the resulting mutant cell lines were characterized. Only a disruption of malK3 produced a defect in maltose catabolism. To verify that the mutant phenotype arose specifically from malK3 inactivation, the malK3 mutation was repaired by recombination, and maltose catabolism was restored. This study demonstrates the importance of a maltose ABC-type transporter and its relationship to sugar metabolism in T. maritima. IMPORTANCE The application and further development of a genetic system was used here to investigate gene paralogs in the hyperthermophile Thermotoga maritima. The occurrence of three ABC transporter ATPase subunits all annotated as malK was evaluated using a combination of genetic and bioinformatic approaches. The results clarify the role of only one malK gene in maltose catabolism in a nonmodel organism noted for fermentative hydrogen production.

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