N-methyl-2-pyrrolidone-degrading bacteria from activated sludge

Water Sci Technol. 2015;71(5):776-82. doi: 10.2166/wst.2015.031.

Abstract

N-methyl-2-pyrrolidone (NMP) is a widely used solvent for many organic compounds and a component found in a vast array of chemical preparations. For this research paper, NMP degrading bacteria were isolated from two samples of activated sludge. They pertained to both Gram-negative and Gram-positive members, and belong to the Pseudomonas, Paracoccus, Acinetobacter and Rhodococcus genera. All the strains utilized 300 mg/L of NMP as the only source of carbon, energy and nitrogen over several days, and they were shown to additionally be able to degrade N-acetylphenylalanine (NAP). The growth of all the isolated strains was recorded at different NMP concentrations, to a maximum of 20 g/L.

MeSH terms

  • Bacteria / isolation & purification
  • Bacteria / metabolism*
  • Carbon / metabolism
  • Nitrogen / metabolism
  • Phenylalanine / analogs & derivatives
  • Pyrrolidinones / metabolism*
  • Rhodococcus / metabolism
  • Sewage / microbiology*
  • Solvents / metabolism

Substances

  • Pyrrolidinones
  • Sewage
  • Solvents
  • Phenylalanine
  • Carbon
  • N-methylpyrrolidone
  • Nitrogen
  • N-acetylphenylalanine