Influence of physiological conditions on EDTA degradation

  title={Influence of physiological conditions on EDTA degradation},
  author={Lothar Henneken and Bernd N{\"o}rtemann and Dietmar C. Hempel},
  journal={Applied Microbiology and Biotechnology},
Aerobic biodegradation of the chelating agent EDTA by a mixed bacterial culture was investigated. Bacterial growth and degradation of the substrate required the presence of sufficient metal ions in the culture fluid. Uncomplexed EDTA interacted negatively with the cell walls of the bacteria and completely inhibited bacterial growth, whereas Mg(II)/Ca(II)-EDTA was degraded up to an initial concentration of 4.7 g/l. Therefore, concentrations of metal ions must be stoichiometric to that of EDTA or… Expand

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