Earticle

초록

영어

For the biosurfactant production process at first Candida bombicola, Sphingomonas yanoikuyae, Sphingomonas chungbukensis and Myxococcus flavescens were studied. As the most productive microorganisms C. bombicola, S. yanoikuyae and S. chungbukensis were selected. During many petrochemical industrial processes variable volatile organic componds are produced and they can cause an unpleasent and unhealthy atmosphere. Usually the volatile organic compounds are treated with chemical detergents. The chemical detergents cannot be easily degradable and can be accumulated in the nature. In this study we tried to develop a production process for the biosurfactants, which can substitute some chemical detergents in some chemical processes, with microorganisms. At second the treatment of the volatile organic compounds with the biosurfactants were tested and compared with the treatment with chemical detergent. The production productivities of the biosurfactant with microorganisms were compared. The growth patterns and kinetics of the microbial cells and the surface tension values of the biosurfactants were studied. The changes of the surface tension in variable pH conditions and sodium chloride concentrations were also studied. The volatile organic carbons were treated in a small plant scale. As the result of this study, it indicated that the specific growth rate of S. chungbukensis was the fastest by 0.144 (hr-1). For surface tension, C. bombicola (38.1 dyne/cm) had the lowest value, and solubility of the volatile organic carbon was similar in C. bombicola and S. chungbukensis. (Toluene: about 0.1 Unit, Chloroform: about 0.6~0.7 Unit, Benzene : about 0.5~0.8 Unit). The biosurfactant, which were produced by C. bombicola, was selected for the further study for the volatile organic carbon treatment. With the biosurfactans from C. bombicola could remove the volatile organic carbon about 80% and this removal rate can be comparable with chemical detergent.

목차

Abstract
 서론
 재료 및 방법
  균주 선택 및 사용배지
  생육특성조사
  미생물 성장동력학 계수 산출
  생물계면활성제 용액의 휘발성 유기화합물질 용해도측정
  표면장력측정
  대량생산 및 산업용 배지 배양
  pH 안정성 및 염 안정성
  파일럿 플랜트 (Pilot plant)규모 적용
 결과 및 고찰
  복합배지배양 및 생육특성 조사
  표면장력 (Surface tension)
  계면활성제 용액에서 휘발성 유기화합물질의 용해도 측정
  미생물 성장동력학 계수를 이용한 성장특성
  대량생산을 위한 균주 선택
  대량생산을 위한 복합배지 배양
  pH 안정성 및 염 안정성
  파일럿 플랜트 규모 적용
  생물계면활성제에 의한 휘발성 유기화합물질 제거
 REFERENCES

키워드

저자

• 이기섭 [ Ki Sup Lee | 서경대학교 생물공학과 ]
• 김기은 [ Gi Eun Kim | 서경대학교 생물공학과 ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  KSBB Journal

• 간기

  격월간

• pISSN

  1225-7117

• 수록기간

  2009~2013

• 십진분류

  KDC 476 DDC 576