Pure-culture growth of fermentative bacteria, facilitated by H2 removal: Bioenergetics and H2 production

Article Abstract:

H2-purging culture vessel was used to study the energetics of butyrate and alanine consumption by pure cultures of Syntrophothermus lipocalidus and Aminobacterium colombiense, for pure cultures of H2 producing syntrophic organisms. For both organisms the observed values were lower than the theoretical maintenance energies at these temperatures and the discrepancy was greater for S. lipocalidus probably because it seems adapted to thrive under conditions of low energy availability.

Energy metabolism, Bioenergetics, Cell culture

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Bacterial population dynamics in dairy waste during aerobic and anaerobic treatment and subsequent storage

Article Abstract:

The dairy waste is analyzed for bacterial content before and after aerobic and anaerobic treatments. The aerobic treatment causes drastic changes in the bacterial population while the anaerobic treatment causes reduction in the microbial phyla.

Microbial populations, Dairy waste, Dairy wastes

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Stable carbon isotopic fractionations associated with inorganic carbon fixation by anaerobic ammonium-oxidizing bacteria

Article Abstract:

A study of carbon isotopic compositions of lipids and biomass of anaerobic ammonium oxidizing bacteria is conducted. This study shows that they possess a carbon fixation pathway which fractionates against candidatus.

Lipids, Biomass

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