Investigation of the Fe3+ Reduction Properties of Shewanella decolomtionis S12
- VernacularTitle:脱色希瓦氏菌S12的铁还原性能研究
- Author:
Xiang-Yi KONG
;
Mei-Ying XU
;
Mian-Cai CHEN
;
Xiao-Yan ZHONG
;
Ying-Hua CEN
;
Guo-Ping SUN
;
- Publication Type:Journal Article
- Keywords:
Shewanella decolorationis S12, Fe3+ reduction, The condition of Fe3+ reduction
- From:
Microbiology
1992;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
A new species of genus shewarella Shewanellade decolorations S12, was isolated from activated sludge of a textile-printing waste-water treatment plant. In the anaerobic condition, S12 could conserve energy for growth by using Fe3 + as the terminal electron acceptor. At the optimal condition of pH8, temperature 30℃, ferric citrate 800mg/L, sodium lactate 2g/ L, yeast extract 0. 5g/ L , the cell growth increased with the raise of the amount of the Fe3+ reduction in 8k The effect of different carbon soucres, nitrogen sources, pH values and growth temperatures on the anaerobic Fe3 + reduction of Shewanella decolorations S12 was investigated. LB was favorable for Fe3 + reduction. Glucose and sodium lactate also were favorable for Fe3+ reduction. The cell growth and Fe3 + reduction increased with the raise of the amount of the yeast extract from 0 to 4g/L The amounts of the sodium lactate of 6g/ L and ferric citrate of 800mg/L were suitable for strain S12 growth and Fe3+ reduction. In the optimum initial pH value range of 6 -8 for Fe3+ reduction, strain S12 growth increased with the raise of the pH val- ue. Strain S12 could growth and reduce Fe3+ at the temperature range of 20 -40℃. The best temperature for strain S12 growth and Fe3 + reduction was 301.
