Noh, U. published the artcilePhototrophic degradation of (2-Cl)-phenol by Rhodopseudomonas palustris: a pathway combining anaerobic and aerobic reactions, Quality Control of 33697-81-3, the publication is Mededelingen – Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Universiteit Gent) (1998), 63(4b), 1867-1872, database is CAplus.
The advantage of anaerobic degradation processes of recalcitrant aromatic compounds are relatively low production of biomass and the possibility of dehalogenation of highly chlorinated compounds Phototrophic bacteria are known for their diverse metabolism, however, there is only little information about phototrophic degradation of phenol and chlorinated aromatic compounds Newly isolated and culture collection strains of Rhodopseudomonas palustris could transform 2-chlorophenol under phototrophic conditions in the presence of a second carbon source to 3-chloro-4-hydroxyphenylacetic acid, which were identified by HPLC, GC-MS and NMR anal. Dechlorination was demonstrated by stoichiometric release of Cl– in the culture fluid. The occurrence of 4-hydroxyphenylacetic acid has never been observed in the degradation of phenol under methanogenic or nitrate reducing conditions, where phenol is first carboxylated to benzoate or p-hydroxybenzoate prior to reduction of the aromatic ring and complete mineralization. Further degradation of 4-hydroxyphenylacetic acid by R. palustris required oxygen, presumably for mono- and dioxygenases, which catalyze the ring cleaving reaction. In continuous cultures the amount of oxygen could be kept low enough to allow further degradation of 4-hydroxyphenylacetic acid and the expression of nitrogenase. Under these conditions phenolic compounds might be mineralized to mol. hydrogen and CO2.
Mededelingen – Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Universiteit Gent) published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Quality Control of 33697-81-3.
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