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Growth characteristics of Acidithiobacillus thiooxidans in different sulfur concentrations
- Title
- Growth characteristics of Acidithiobacillus thiooxidans in different sulfur concentrations
- Authors
- Lee E.Y.; Cho K.-S.; Hee W.R.
- Ewha Authors
- 조경숙
- SCOPUS Author ID
- 조경숙
- Issue Date
- 2006
- Journal Title
- Korean Journal of Microbiology and Biotechnology
- ISSN
- 1598-642X
- Citation
- Korean Journal of Microbiology and Biotechnology vol. 34, no. 4, pp. 338 - 341
- Indexed
- SCOPUS; KCI
- Document Type
- Article
- Abstract
- The growth characteristics of sulfur-oxidizing bacteria, Acidithiobacillus thiooxidans AZ11, MET, and TAS were investigated in mineral salt media supplemented with elemental sulfur of 1-50 g L -1. The sulfur oxidation rates of A. thiooxidans MET and TAS increased highly with increasing sulfur concentration up to 10 g L -1, but the rates increased slowly in sulfur concentration over 10 g L -1. A. thiooxidans AZ11 showed the parallel increase of sulfur oxidation rate until sulfur concentration increased up to 40 g L -1. The maximum sulfur oxidation rates (V max) of AZ11, MET and TAS were 1.88, 1.38 and 0.43 g S L -1 d _1, respectively. The maximum specific growth rates (μ max) of AZ11, MET, and TAS were 0.33 d -1, 0.30 d -1 and 0.45 d -1, respectively. Although MET and TAS couldn't grow at sulfate concentration of 40 g L -1, AZ11 could grow in the presence of 58 g L -1 sulfate, the final oxidation product of elemental sulfur.
- Appears in Collections:
- 공과대학 > 환경공학과 > Journal papers
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