Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Isolation of an Aromatic Polyhydroxyalkanoates-degrading Bacterium

  • JU, HE-SUG (Department of Agricultural Chemistry, Sunchon National University) ;
  • JUNGHO KIM (Department of Agricultural Chemistry, Sunchon National University) ;
  • HOON KIM (Department of Agricultural Chemistry, Sunchon National University)
  • Published : 1998.10.01
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Abstract

Five microorganisms capable of degrading an aromatic medium-chain-length polyhydroxyalkanoate ($PHA_{MCL}$), poly(3-hydroxy-5-phenylvalerate) (PHPV), were isolated from wastewater-treatment sludge. Among the isolates, JS02 showed degrading activity consistantly during several transfers. The isolate JS02 could hydrolyze another aromatic MCL copolyester, poly(3-hydroxy-5-phenoxyvalerate-co-3-hydroxy-7-phenoxyheptanoate), ［P(5POHV-co-7POHH)］, and other short-chain-length PHAs ($PHA_{SCL}) such as poly(3-hydroxybutyrate) ［P3(HB)］, poly(3-hydroxybutyrate-co-4-hydroxybutyrate) ［P(3 HB-co-4 HB)］, and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) ［P(3HB-co-3HV)］ with relatively low activity. The culture supernatant of JS02 showed hydrolyzing activity for the p-nitrophenyl esters of fatty acids.

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