Titlebook: Black Sea Energy Resource Development and Hydrogen Energy Problems; Ayfer Veziro?lu,Marat Tsitskishvili Conference proceedings 2013 Spring

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H, Producing Activity by , During Mixed Carbon Fermentation at Slightly Alkaline and Acidic pHs: No) pHs. Wild type cells, in the assays with glucose, produced H. at pH 7.5 with the same level as cells grown on glucose. Compared to wild type, H. production in . and . mutants decreased ~6.5 and ~7.9 fold, respectively. In wild type cells H. formation at pH 5.5 was lowered ~2 fold, compared to the

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Glycerol Fermentation and Molecular Hydrogen Production by , Batch Cultures Affected by Some Reduci growth and H. production were investigated. Influences of aforementioned metal ions and Cu., as well as Fe. on H. production rate . assays were also studied in wild type and . double mutant (with defective hydrogenase (Hyd) 1 and Hyd -2). Cell growth was shown to be followed by decrease of pH and r

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The Effect of Various Metal Ions on Bio-hydrogen Production and F,F,-ATPase Activity of ,,in membrane mechanism generating proton motive force. . MDC 6521 (isolated from Arzni mineral springs in Armenia) is able to produce H. in anaerobic conditions under illumination in the presence of various metal ions. In order to examine the mediatory role of the F.F.-ATPase in H. production, the ef

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