Establishment and Characterization of an Anaerobic Thermophilic (55(deg)C) Enrichment Culture Degrading Long-Chain Fatty Acids.

Inhibition of Thermophilic Anaerobic Digestion of Waste Food by Long Chain Fatty Acids and Propionate

Isolation and Characterization of a Thermophilic Sulfate-Reducing Bacterium, Desuvotomaculum themosapovorans sp. nov

Strain MLFT (T = type strain), a new thermophilic, spore-forming sulfate-reducing bacterium, was characterized and was found to be phenotypically, genotypically, and phylogenetically related to the genus Desulfotornaculurn. This organism was isolated from a butyrate enrichment culture that had been inoculated with a mixed compost containing rice hulls and peanut shells. The optimum temperature ...

Anaerobic treatment of poultry mortality in a temperature-phased leachbed-UASB system.

Anaerobic digestion has been proposed as an alternative to the conventional disposal methods of burial, incineration, rendering and aerobic composting. A temperature-phased system consisting of one UASB (at 55 degrees C) and three leach-bed reactors (at ambient temperatures) was tested for its efficiencies in treating poultry mortality. The thermophilic UASB was difficult to start-up. It also s...

Effect of sulfate on methanogenic communities that degrade unsaturated and saturated long-chain fatty acids (LCFA).

Anaerobic bacteria involved in the degradation of long-chain fatty acids (LCFA), in the presence of sulfate as electron acceptor, were studied by combined cultivation-dependent and molecular techniques. The bacterial diversity in four mesophilic sulfate-reducing enrichment cultures, growing on oleate (C(18:1), unsaturated LCFA) or palmitate (C(16:0), saturated LCFA), was studied by denaturing g...

Caloramator coolhaasii sp. nov., a glutamate-degrading, moderately thermophilic anaerobe.

An obligately anaerobic, moderately thermophilic, glutamate-degrading bacterium (strain ZT) was isolated from an enrichment culture obtained from anaerobic thermophilic granular sludge. The cells were rod-shaped to filamentous and showed no motility or spore formation. The cell wall had a Gram-positive structure, which was revealed by electron microscopy. Optimum growth of the strain was observ...