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Vol. 23 No. 12 (2011): Vol 23 Issue 12

Effects of Metal Ions on Laccase Activity

Xiwen Wang
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P.R. China
Jian Hu
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P.R. China
Yun Liang
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P.R. China
Huaiyu Zhan
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P.R. China

Corresponding Author(s) : Yun Liang

wxwxyh@163.com

Asian Journal of Chemistry, Vol. 23 No. 12 (2011): Vol 23 Issue 12

Abstract

The effects of five metal ions (Fe2+, Ca2+, Mg2+, Mn2+, Cu2+) on 2,2'-azino-di(3-ethylbenzthiazoline- 6-sulfonic acid) (ABTS) oxidation catalyzed by laccase were studied by spectrophotometer. The results show that Fe2+ ion has obvious effect on the activity and the nature of inhibition is competitive type. It is found that the inhibition is realized through the reduction of 2,2'-azinodi( 3-ethylbenzthiazoline-6-sulfonic acid) by Fe2+ ion. Other metal ions have slight influence on laccase activity.

Keywords

Metal ions Laccase Activity
(1)
Wang, X.; Hu, J.; Liang, Y.; Zhan, H. Effects of Metal Ions on Laccase Activity. ajc 2011, 23, 5422-5424.
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