泡盛曲霉对铜的积累

Copper accumulation by Aspergillus awamori.

作者信息

Tsekova K V, Marinov P G, Tzekova A N

机构信息

Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.

出版信息

Folia Microbiol (Praha). 2000;45(3):217-20. doi: 10.1007/BF02908947.

DOI:10.1007/BF02908947

PMID:11271803

Abstract

Aspergillus awamori accumulated Cu2+ from aqueous solutions. The level of copper uptake was dependent on the ambient metal concentration. The process consisted of two phases: a fast initial phase and a slower secondary phase. Chelation of these ions occurs by chemical, equilibrated and saturable mechanism, following the mathematical models of Langmuir and Freundlich, with better performance on the Langmuir model. Data transformation allowed us to calculate the kinetic constants of the sorption reaction.

摘要

泡盛曲霉从水溶液中积累铜离子。铜的吸收水平取决于环境金属浓度。该过程包括两个阶段：快速的初始阶段和较慢的第二阶段。这些离子的螯合通过化学、平衡和可饱和机制发生，遵循朗缪尔和弗伦德利希的数学模型，在朗缪尔模型上表现更好。数据转换使我们能够计算吸附反应的动力学常数。