Biodegradation of phenolic environmental pollutants by a surfactant-laccase complex in organic media

Junji Michizoe, Hirofumi Ichinose, Noriho Kamiya, Tatsuo Maruyama, Masahiro Goto

研究成果: ジャーナルへの寄稿記事

49 引用 (Scopus)

抄録

Oxidative degradation of phenolic environmental pollutants in organic media was investigated using a laccase complexed with surfactants. The catalytic activity of the surfactant-laccase complex in isooctane was markedly enhanced by appropriately adjusting the water content of the reaction medium using reverse micelles. The surfactant-laccase complex showed little activity towards the oxidative reaction of bisphenol A in water-saturated isooctane (i.e., 0.0055% [v/v] water) while effectively catalyzed the same reaction in isooctane containing 4% (v/v) water, which is over the maximum water solubility. The latter system was homogeneous and was only achieved by the aid of reverse micelles. With respect to the oxidation of bisphenol A, two products, 4-isopropylphenol and 4-isopropenylphenol, were identified by gas chromatography-mass spectrometry (GC-MS) analyses, indicating the oxidative degradation of the bis-phenolic structure of bis-phenol A. We also found that the surfactant-laccase complex turned out to handle other environmental pollutants, chlorophenols, by the simultaneous addition of water and a redox mediator into the reaction medium using reverse micelles.

元の言語英語
ページ(範囲)642-647
ページ数6
ジャーナルJournal of Bioscience and Bioengineering
99
発行部数6
DOI
出版物ステータス出版済み - 1 1 2005

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Laccase
Environmental Pollutants
Biodegradation
Surface-Active Agents
Surface active agents
Micelles
Water
Chlorophenols
Degradation
Phenol
Gas chromatography
Water content
Phenols
Mass spectrometry
Catalyst activity
Solubility
Gas Chromatography-Mass Spectrometry
Oxidation-Reduction
Oxidation
2,2,4-trimethylpentane

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

これを引用

Biodegradation of phenolic environmental pollutants by a surfactant-laccase complex in organic media. / Michizoe, Junji; Ichinose, Hirofumi; Kamiya, Noriho; Maruyama, Tatsuo; Goto, Masahiro.

:: Journal of Bioscience and Bioengineering, 巻 99, 番号 6, 01.01.2005, p. 642-647.

研究成果: ジャーナルへの寄稿記事

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