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논문

Impact of Dissolved Wastewater Constituents on Laccase-Catalyzed Treatment of Bisphenol A

김영진
한국환경보건학회 (Korean Society of Environmental Health)|2004.06|한국환경보건학회지 (JOURNAL OF ENVIRONMENTAL HEALTH SCIENCES)|제30권 제2호|pp. 161-166

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Abstract

The oxidative degradation of BPA with laccase from Trametes versiclor was conducted in a closed, temperature controlled system containing acetate buffer for pH control. The effects of medium pH, buffer concentration, temperature and mediator on degradation of BPA were investigated. The inactivation of the enzyme by temperature and reaction product was also studied. The optimal pH for BPA degradation showed about 5. Buffer concentration did not affect BPA degradation. On the other hand, the enzyme stability was higher at low concentration buffer (25 mM). Temperature rise increased the degradation rate of BPA up to 45oC. The valuable mediator of laccase for BPA was ABTS. Elevated temperature and reaction product irreversibly inactivated the enzyme.

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