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KMID : 0380020030180060443
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Korean Journal of Biotechnology and Bioengineering
2003 Volume.18 No. 6 p.443 ~ p.447
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Optimization of the Sulfur-oxidzing Bacteria, Thiobacillus novellus SRM
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Kwun Kyu-Hyuk
Cha Wol-Suk
Go Han-Cheol
Lee Gwang-Yeon
Park Don-Hee
Cha Jin-Myung
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Abstract
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The microorganism was isolated from the night soil treatment plant for the removal of sulfur compounds. The growth conditions of the sulfur-oxidizing bacteria were investigated and the isolate characterized as Thiobacillus noveilus SRM. The optimal pH of Thiobacillus novellus SRM on cell growth was pH 7.0 and the optimal temperature was 30 and the optimal air flow rate was 1 vvm, respectively. As a results of cell growth from the Monod plot, the specific growth rate was 0.032 hr-l/, was 1.43 hr-l/ and was 0.32, respectively. The thiosulfate oxidation by Thiobacillus novellus SRM was made of sulfate ion. The sulfate ion reduced pH and decreased cell growth.
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KEYWORD
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Thiobacillus novellus SRM, thiosulfate oxidation, sulfate ion
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