Laccase-mediated oxidative degradation of the herbicide dymron

Tatsuo Maruyama, Chiho Komatsu, Junji Michizoe, Hirofumi Ichinose, Masahiro Goto

研究成果: ジャーナルへの寄稿記事

27 引用 (Scopus)

抄録

The present study reports the successful and effective degradation of the persistent herbicide dymron catalyzed by the oxidative enzyme laccase in the presence of a reaction mediator (a laccase/mediator system). Using 2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) as the mediator, over 90% of dymron was degraded within 24 h, while the half-life of dymron is 50 days in soil. The results suggested that oxidation of dymron resulted in the production of decomposed compounds with a single aromatic ring. We also found that edible surfactants and a dishwashing detergent were useful to solubilize dymron in an aqueous solution and did not inhibit the oxidative degradation. Degradation proceeded at acidic pH and in a broad range of temperatures (303-353 K). The use of natural mediators also allowed the oxidative degradation of dymron to some extent. In conclusion, we propose the possible use of a laccase/mediator system for the treatment of soils and drainwater contaminated with herbicides.

元の言語英語
ページ(範囲)426-430
ページ数5
ジャーナルBiotechnology Progress
22
発行部数2
DOI
出版物ステータス出版済み - 3 1 2006

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Laccase
Herbicides
Soil
Sulfonic Acids
Surface-Active Agents
Detergents
Half-Life
1-(alpha,apha-dimethylbenzyl)-3-(4-methylphenyl)urea
Temperature
Enzymes

All Science Journal Classification (ASJC) codes

  • Biotechnology

これを引用

Laccase-mediated oxidative degradation of the herbicide dymron. / Maruyama, Tatsuo; Komatsu, Chiho; Michizoe, Junji; Ichinose, Hirofumi; Goto, Masahiro.

:: Biotechnology Progress, 巻 22, 番号 2, 01.03.2006, p. 426-430.

研究成果: ジャーナルへの寄稿記事

Maruyama, Tatsuo ; Komatsu, Chiho ; Michizoe, Junji ; Ichinose, Hirofumi ; Goto, Masahiro. / Laccase-mediated oxidative degradation of the herbicide dymron. :: Biotechnology Progress. 2006 ; 巻 22, 番号 2. pp. 426-430.
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