RRC ID 15428
著者 Lilova K, Karamanev D, Flemming RL, Karamaneva T.
タイトル Biological oxidation of metallic copper by Acidithiobacillus ferrooxidans.
ジャーナル Biotechnol Bioeng
Abstract This is a report on the kinetic aspects and the analytical study of the bioproducts of the oxidation of zero-valence copper by immobilized Acidithiobacillus ferrooxidans. Two different mechanisms of oxidation were considered: direct and indirect. A custom-built bioreactor was used to grow A. ferrooxidans in an iron-free media, which was required for the study of the direct mechanism. X-ray microdiffraction analysis of the copper after biooxidation in the sulfate-free medium revealed the presence of the copper sulfate, piypite, K(2)Cu(2)O(SO(4))(2), which indicates biooxidation of Cu metal has occurred. It was shown that the direct oxidation exists, but it is relatively slow, as compared to the indirect mechanism.
巻・号 97(2)
ページ 308-16
公開日 2007-6-1
DOI 10.1002/bit.21137
PMID 16937398
MeSH Acidithiobacillus / drug effects Acidithiobacillus / metabolism* Acidithiobacillus / ultrastructure Bioreactors Copper / metabolism* Copper Sulfate / pharmacology Industrial Microbiology Oxidation-Reduction*
IF 4.002
引用数 12
WOS 分野 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
リソース情報
一般微生物 JCM 3863