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2003~현재

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작성자 관리자
조회수 2275
일 자 2003년 11월 15일
첨부파일 6폐기물분석과(유해균주).hwp [840]Kbyte / 다운로드[3560]건 
글제목 [2003] 유류분해 균주로부터 생성된 생물계면활성제 특성과 생물학적 환경복원 적용방법 검토 (Ⅰ)
유류분해 균주로부터 생성된 생물계면활성제 특성과 생물학적 환경복원 적용방법 검토 (Ⅰ)
폐기물분석과, *전남대학교 환경공학과 Characterization of a produced Biosurfactant by Crude oil-degrading Microorganisms and Apply for in situ Bioremediation *Department of Environmental Engineering Chonnam National University
Abstracts Biosurfactant production by P. aeruginosa F722 was amounted to 0.78g/ as the result of the nitrogen sources and carbon sources without investing of optimum conditions. As for that one was investigated, biosurfactant production by P. aeruginosa F722 was amounted to 1.66g/ . Biosurfactant production increased twofold in the investigated culture composition. NH4Cl or NaNO2 inorganic nitrogens and yeast extract or trypton organic nitrogens were effective, but others inorganic nitrogens and organic nitrogens tested were not efficient for biosurfactant production by P. aeruginosa F722. The optimum concentration of NH4Cl; inorganic nitrogen and yeast extract; organic nitrogen were 0.05% and 0.1%, respectively. In various carbon sources, others with the exception of hydrophobic property substrate (n-alkane) and hydrophilic property substrate (glucose, glycol) were not found to be effective for biosurfactant production, and 3.0% was better in yield than other concentration of glucose. This yielded C-to-N ratios between 17 and 20. In our experiment, the highest biosurfactant production by P. aeruginosa F722 were observed in 5 days cultivation, containing glucose 3.0%, NH4Cl 0.05%, and yeast extract 0.1% and C-to-N ratio was 20. Optimal pH and temperature for biosurfactant production were 7.0 and 35 , respectively. Under the optimal culture conditions with glucose, biosurfactant production was amounted to 1.66 g/ .
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