A shift from anaerobic digestion to dark fermentation in glycol ethylene fermentation

Fermentation of ethylene glycol by Clostridium glycolicum, sp. n.

Gaston, Lamont W. (National Heart Institute, National Institutes of Health, Bethesda, Md.) and E. R. Stadtman. Fermentation of ethylene glycol by Clostridium glycolicum, sp. n. J. Bacteriol. 85:356-362. 1963.-An anaerobic organism which utilizes ethylene glycol as a source of energy and carbon has been isolated from mud. It is a long (5 mu), slender, motile, gram-positive, spore-forming rod, wi...

Industrial symbiosis: corn ethanol fermentation, hydrothermal carbonization, and anaerobic digestion.

The production of dry-grind corn ethanol results in the generation of intermediate products, thin and whole stillage, which require energy-intensive downstream processing for conversion into commercial animal feed products. Hydrothermal carbonization of thin and whole stillage coupled with anaerobic digestion was investigated as alternative processing methods that could benefit the industry. By...

Anaerobic fermentation of lysine.

Extraction of Amylase from Fermentation Broth in Poly (Ethylene Glycol) Salt Aqueous Two-Phase System

Studies were carried out on the partition of amylase from Bacillus subtilis in a minimal medium at 37 oC and 110 rpm. Enzyme recovery was carried out in aqueous two-phase system PEG-Phosphate salt were carried out. The best purification factor (5.4) was obtained in system PEG 1000 (16.7% w/w) with potassium phosphate (14.8% w/w), at pH 6.0, resulting in a recovery of 45.2% activity enzymatic in...

Inverted phase fermentation as a pretreatment for anaerobic digestion of cattle manure and sewage sludge.

The aim of this research study was to analyse the effect of applying inverted phase fermentation (IPF) prior to the anaerobic digestion of cattle manure and sewage sludge. IPF promotes the endogenous bacteria present in waste and hence enzymatic hydrolysis, producing a solid-liquid separation. The clarified bottom layer or liquid phase (LP, 70% volume in manure and 65% in sludge), and the thick...