한국생물공학회:학술대회논문집
- 한국생물공학회 2002년도 생물공학의 동향 (X)
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- Pages.121-125
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- 2002
높은 유상비에서 Rhodococcus rhodochrous IGTS8를 이용한 탈황효율의 분석과 5-L 배양기에의 적용
초록
Rhodococcus rhodochrous IGTSS (ATCC 5396S) can break organo sulfur compounds such as dibenzothiophene. Since the environment for biodesulfurization process is invariably hydrophobic, parameters in hydrophobic systems should be examined. For the model oil, hexadecane-containing 5.43mM dibenzothiophene, the volumetric desulfurization rate was decreased with the oil-to-aqueous phase ratio up to 50%. The rate declined sharply after 48h because the cell activity, which is refreshed by medium exchange, was lost. To supply the exhausted nutrients, medium exchange was performed. At 30% oil phase, most of DBT was removed by medium exchange on 48h, and the rate was 2.03mg
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