Hydrogen Sulfide Production with a Microbial Consortium Isolated from Marine Sediments Offshore

Hydrogen, electric energy production, and metal toxic bioremediation are some of the biotechnological applications sulfate-reducing organisms, which potentially depend on sulfide produced. In this study, offshore Yucatan, capacity to produce hydrogen using microbial consortia from marine sediment (SC469, PD102, SD636) in batch reactors was evaluated. Kinetic tests were characterized by lactate oxidation acetate, propionate, CO2 methane. The inoculum SC469, located open-ocean, differed strongly diversity showed better performance substrate utilization with highest production (246 mmolg?1 VSS) at a specific rate 113 mmol g?1 VSS d?1 0.79 molar ratio sulfate/lactate. Sulfate-reducing enriched laboratory sediments collected Yucatan moderate eutrophication index, loss microorganisms greater for degradation organic macromolecules. Illumina MiSeq technology mainly Desulfomicrobium, Clostridium Desulfobacter.