Enzymatic Oxidative Polymerization of 4-Chloroguaiacol by Laccase
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概要
- 論文の詳細を見る
The kinetics of enzymatic oxidative polymerization of 4-chloroguaiacol by laccase was studied. 4-Chloroguaiacol, a model compound of the chloroguaiacols formed in the bleaching process in the pulp industry, was oxidized by laccase from Trametes sp. Ha1 to eliminate chloroguaiacols from pulp wastewater by polymerization and precipitation. On the basis of the reaction rate obtained from the decrease in the 4-chloroguaiacol concentration, the optimum pH of the reaction was 4–5 and the apparent Michaelis constant Km for the reaction was more than 5 mmol dm–3. However, the value of Km obtained from the dependence of oxygen consumption rate on the concentration of 4-chloroguaiacol was 0.092 mmol dm–3. The reaction rate was expressed as the sum of the enzymatic oxidation rate of 4-chloroguaiacol and the polymerization rate of the radical formed in the enzymatic oxidation. The kinetics of the enzymatic oxidative polymerization shown in this study will be useful to understand those of the enzymatic oxidation of other phenolic compounds.
- 社団法人 化学工学会の論文
- 2003-09-01
著者
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Tano Tatsuo
Department Of Bioresources Chemistry Faculty Of Agriculture Okayama University
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田中 孝明
新潟大・工・機能材料
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Fujii T
Niigata Univ. Pharmacy And Applied Life Sci. Niitsu Jpn
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Takahashi Masafumi
Department Of Cardiovascular Medicine Shinshu University Graduate School Of Medicine
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Taniguchi Masayuki
Department of Materials Science and Technology, Niigata University
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Tanaka Takaaki
Department of Materials Science and Technology, Niigata University
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Fujii Tomoyuki
Department Of Food Science And Technology Niigata University Of Pharmacy And Applied Life Sciences
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Taniguchi M
Fac. Engineering Niigata Jpn
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Taniguchi M
Department Of Material Science And Technology Faculty Of Engineering
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Taniguchi M
Department Of Materials Science And Technology Niigata University
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Taniguchi Masayuki
Department Of Food Science And Technology Faculty Of Agriculture Kyoto University
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Taiyouji Mayumi
Gaduate School Of Science And Technology Niigata University:food Research Center Niigata Agricultura
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YAMAMOTO MIHOKO
Department of Materials Science and Technology, Niigata University
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Taniguchi Masayuki
Department Of Materials Science And Technology Niigata University
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Taniguchi Masayuki
Gaduate School Of Science And Technology Niigata University:food Research Center Niigata Agricultura
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Fujii Tomoyuki
Department Of Applied Biological Chemistry The University Of Tokyo
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Fujii Takao
Department Of Food Science And Technology Niigata University Of Pharmacy And Applied Life Sciences
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Tanaka Mitsuo
Department Of Food Science And Technology Faculty Of Agriculture Kyoto University
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Yamamoto Mihoko
Department Of Materials Science And Technology Niigata University
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Taniguchi Masayuki
Department Of Cardiology Jikei University School Of Medicine Daisan Hospital
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Tanaka Takaaki
Department Of Geoscience Joetsu University Of Education
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Tanaka Takaaki
Department Of Biotechnology Faculty Of Engineering Okayama University
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Taniguchi Masayuki
Department Of Physics Faculty Of Science Kobe University
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Tanaka Takaaki
Department Of Bioscience & Biotechnology Faculty Of Engineering Okayama University
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Takahashi Masafumi
Department of Materials Science and Technology, Niigata University
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