INVESTIGADORES
CURUTCHET Gustavo Andres
artículos
Título:
Factors affecting the chromium(VI) reduction by microbial action
Autor/es:
QUINTANA, M.; CURUTCHET, G.; DONATI, E.
Revista:
BIOCHEMICAL ENGINEERING JOURNAL
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2001 vol. 9 p. 11 - 15
ISSN:
1369-703X
Resumen:
The ability of Thiobacillus ferrooxidans cultures to reduce chromium(VI) to chromium(III) was evaluated under different conditions.In T. ferrooxidans cultures with sulphur as energy source, the capacity for chromium(VI) reduction was related to the generation ofsulphur compounds (sulphite, thiosulphate and polythionates) with high reducing power. In contrast with other chromium(VI)-reducingmicroorganisms, T. ferrooxidans showed higher chromium(VI) reduction at low pH. The reduction of chromium(VI) also increased with theage of the culture. A T. ferrooxidans cells were capable of growing under anaerobic conditions with chromium(VI) as the terminal-electronacceptor. © 2001 Elsevier Science B.V. All rights reserved.
