Anaerobic degradation of long-chain dicarboxylic acids by methanogenic enrichment cultures

Degradation of unsaturated hydrocarbons by methanogenic enrichment cultures

The biodegradability of hydrocarbons under anaerobic conditions was studied in enrichment cultures using mineral media inoculated with sewage sludge or sediment samples of limnic and marine origin. No indication of methanogenic degradation was obtained with either n-hexane, nhexadecane, n-heptadecane, 1-hexene, cis-2hexene, trans-2-hexene, isoprene, 1-hexine, benzene, toluene, xylene, cyclohexe...

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

Identification of the peroxisomal beta-oxidation enzymes involved in the degradation of long-chain dicarboxylic acids.

Dicarboxylic acids (DCAs) are omega-oxidation products of monocarboxylic acids. After activation by a dicarboxylyl-CoA synthetase, the dicarboxylyl-CoA esters are shortened via beta-oxidation. Although it has been studied extensively where this beta-oxidation process takes place, the intracellular site of DCA oxidation has remained controversial. Making use of fibroblasts from patients with def...

Identification of the peroxisomal β-oxidation enzymes involved in the degradation of long-chain dicarboxylic acids

Dicarboxylic acids (DCAs) are -oxidation products of monocarboxylic acids. After activation by a dicarboxylyl-CoA synthetase, the dicarboxylyl-CoA esters are shortened via -oxidation. Although it has been studied extensively where this -oxidation process takes place, the intracellular site of DCA oxidation has remained controversial. Making use of fibroblasts from patients with defined mitochon...

The catabolism of medium- and long-chain dicarboxylic acids.

The w-oxidation of fatty acids results in the formation of mediumand long-chain dicarboxylates. By this accessory metabolic pathway monocarboxylic acids are first converted into w-hydroxymonocarboxylic acids, a reaction catalysed by the microsomal mixed-oxidase function system (Pettersen, 1972). These intermediates are subsequently converted into w-oxomonocarboxylic acids and dicarboxylic acids...