期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Laccase-catalyzed bisphenol A oxidation in the presence of 10-propyl sulfonic acid phenoxazine 被引量:3
1
作者 ruta ivanec-goranina Juozas Kulys +2 位作者 Irina Bachmatova Liucija Marcinkeviciene Rolandas Meskys 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2015年第4期135-139,共5页
The kinetics of the Coriolopsis byrsina laccase-catalyzed bisphenol A(BisA) oxidation was investigated in the absence and presence of electron-transfer mediator 3-phenoxazin-10-ylpropane-1-sulfonic acid(PPSA) at p... The kinetics of the Coriolopsis byrsina laccase-catalyzed bisphenol A(BisA) oxidation was investigated in the absence and presence of electron-transfer mediator 3-phenoxazin-10-ylpropane-1-sulfonic acid(PPSA) at pH 5.5 and 25°C. It was shown that oxidation rate of the hardly degrading compound BisA increased in the presence of the highly reactive substrate PPSA. The increase of reaction rate depends on PPSA and BisA concentrations as well on their ratio, e.g., at0.2 mmol/L of BisA and 2 μmol/L of PPSA the rate increased 2 times. The kinetic data were analyzed using a scheme of synergistic laccase-catalyzed BisA oxidation. The calculated constant, characterizing reactivity of PPSA with laccase, is almost 1000 times higher than the constant, characterizing reactivity of BisA with laccase. This means that mediator-assisted BisA oxidation rate can be 1000 times higher in comparison to non-mediator reaction if compounds concentration is equal but very low. 展开更多
关键词 Bisphenol A OXIDATION LACCASE PHENOXAZINE
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部