Investigation of inhibition kinetics of Zn(II) Ions on the acid phosphatase activity and growth of R-delemar and Zn(II) bioaccumulation

被引：1

作者：

Acikel, Unsal ^{[1
]}

Ersan, Mehtap ^{[1
]}

机构：

[1] Cumhuriyet Univ, Dept Chem Engn, Fac Engn, TR-58140 Sivas, Turkey

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 08期

关键词：

Wastewater treatment; Bioaccumulation; Heavy metal; Acid phosphatase; Inhibition kinetics; HEAVY-METALS; ACCUMULATION; BACTERIA; COPPER;

D O I：

10.1080/19443994.2014.989911

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This study investigated the production of acid phosphatase enzyme, which plays a direct role in the metal bioaccumulation and growth of Rhizopus delemar, in the presence of increasing concentrations of Zn(II) ions. Inhibition of the organism's growth rate by Zn(II) ions was found to be of the partially competitive type, with an inhibition constant of 301.4mg Zn(II)/L. In addition, Zn(II) ions exhibited a non-competitive mixed-type inhibition on the activity of acid phosphatase. For the mixed-type inhibition, the inhibition constant (K-I) and the binding affinity (alpha) were determined as 116.67mg Zn(II)/L and 0.395, respectively.

引用

页码：3689 / 3699

页数：11

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