cas number: 900 biodegradation of polyacrylamide by bacteria isolated

cas number: 900 biodegradation of polyacrylamide by bacteria isolated
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  • Is polyacrylate more recalcitrant to biodegradation than amide?
  • The carbon backbone, polyacrylate, is more recalcitrant to biodegradation than the amide moieties. There are nevertheless reports on microbial growth with polyacrylamide and polyacrylate as the carbon sources.
  • How is polyacrylamide biodegradable?
  • Both single microbial species as well as mixed populations have been investigated for degradation. Biodegradation of polyacrylamide begins with amidase catalysed deamination of polyacrylamide to ammonia and polyacrylate. The liberated ammonia is then used as a nitrogen source for growth by the microbes.
  • Are polyacrylates recalcitrant to degradation?
  • Remaining polyacrylates are more recalcitrant to degradation. Polyacrylamide degradation has mainly been reported for aerobic bacteria. With fungi the degradation is initiated by secreted lignin degrading oxidases. Polyacrylamide may be degraded to acrylamide anaerobically, but not aerobically.
  • Can soil microbes degrade polyacrylate and acrylamide copolymer?
  • The biodegradation of insoluble polyacrylate and polyacrylate-acrylamide copolymer by soil microbes and P. chrysosporium was studied using similar methodology. Soil microbes alone were able to degrade the polymers only poorly and were unable to mineralize them.