fulltext.study @t Gmail

The role of higher polythionates in the reduction of chromium(VI) by Acidithiobacillus and Thiobacillus cultures

Paper ID Volume ID Publish Year Pages File Format Full-Text
25577 43582 2006 7 PDF Available
Title
The role of higher polythionates in the reduction of chromium(VI) by Acidithiobacillus and Thiobacillus cultures
Abstract

In this paper, we report the chromium(VI) reduction by filtrates of Acidithiobacillus and Thiobacillus cultures. Chromium(VI) reduction by filtrates of A. ferrooxidans cultures under acidic conditions was higher than that observed for A. thiooxidans. However, at pH close to 7, chromium(VI) reduction by filtrates of T. thioparus cultures was as high as that by filtrates of A. thiooxidans cultures and much higher than that observed for A. ferrooxidans cultures at the same pH. The capability of these cultures to reduce chromium(VI) was associated specifically with the fraction of cultures (cells, sulphur and associated sulphur compounds) retained by filtration through a 0.45 μm filter. In the fraction that comes from A. thiooxidans culture, polythionates (SxO62−) with 3–7 sulphur atoms were detected and identified (by HPLC with MS as detector). The model of vesicles containing polythionates, sulphur and water agrees with our results.

Keywords
Chromium; Reduction; Acidithiobacillus; Thiobacillus; Polythionates
First Page Preview
The role of higher polythionates in the reduction of chromium(VI) by Acidithiobacillus and Thiobacillus cultures
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 122, Issue 1, 9 March 2006, Pages 55–61
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us