The biodegradation of piperazine and structurally-related linear and cyclic amines

摘要: The biodegradability of a range linear and cyclic amines was assessed. All proved to be biodegradable but there were interesting differences in their susceptibility. least degradable piperazine although piperazine-degrading microorganisms widespread occurrence samples water activated sludge and, lesser extent, soils. Piperazine degraders are only present very small numbers — on averageca. 0.8/ml river water. Of six isolates capable using as sole source carbon, nitrogen energy pure culture five identified asMycobacterium spp. one asArthrobacter sp., all strains slow growth (mean generation time ofca. 30 40 hours) this substrate. Piperidine, pyrrolidine, ethanolamine diethanolamine readily biodegradable. relationship between structure degradability is discussed the possible reasons for relative recalcitrance piperazine.