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Earlier research demonstrated the secretion of benzoate, which must be oxygenated to its 4-hydroxy derivative in order to be included in further sulfate uptake processes. The present study on Desulfotomaculum acetoxidans DSM 771 was designed to determine the activity and catalytic specificity of the enzyme (most probably peroxidase) catalyzing the hydroxylation of secreted benzoate. Peroxidase activity...
The aim of the present study was to examine the content, and its change with time, of 4-nonylphenol and nonylphenol ethoxylates in sewage sludge from Polish municipal wastewater treatment plants. The sludge samples from twelve wastewater treatment plants were examined for three consecutive years (2005-2007). The content of 4-NP was determined only in one set of samples from 2005 and in those from...
Three independent 28 or 32-day stationary cultures of Desulfotomaculum acetoxidans DSM 771 strain were carried out under anoxic conditions in acetate or lactate-containing media. The acids were the sole carbon and energy sources in these media. During cultivation the turbidity (for calculation of cell division index) and hydrogen sulfide contents were determined in culture broth and reduced glutathione...
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