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Determination of Intrinsic Kinetics Parameters for Oscillibacter sp., a CO-Utilizing Acetogenic Bacterium

첫 페이지 보기
  • 발행기관
    한국생물공학회 바로가기
  • 간행물
    한국생물공학회 학술대회 바로가기
  • 통권
    2013 춘계학술대회 (2013.04)바로가기
  • 페이지
    pp.174-174
  • 저자
    Muhammad YASIN, Shinyoung PARK, In Seop CHANG
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A197584

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원문정보

초록

영어
Biological conversion of syngas (CO, H2 and CO2) has gained a widespread interest in the recent decades. The anaerobic microorgansisms called as “acetogens” utilize CO and CO2/H2 as carbon and energy sources, and produce useful fuels and chemicals. However, the low solubility of CO and its high affinity to metal ions in the CO oxidizing enzymes are big hurdles to achieve a suscessful operation of commercial sized bioreactor. It has been already reported that high concentration of CO during reaction reduces the activity of CO oxidizing enzymes and hence inhibits the microbial growth. Thus the optimum concentration of the CO in the fermentation media is desired to design and control large scale fermenters. The aim of this sudy is to evaluate the CO utilizing capacity for a newly isolated strain which is identified as Oscillibacter sp. cow-5. This strain is a strict anerobic acetogen which produces various chemicals: acetate, butyrate and small amount of ethanol and iso-valerate from CO. The strain was grown under optimum growth conditions in a batch reactor (serum vials) and a modified Monod model equation was used to determine the maxmium growth rate (μmax) and Monod constant (Ks). Simulated data were well fitted with experimental one, and two paramters, μmax and Ks, were estimated as 0.05 h-1 and 0.044 mM CO, respectivley using non linear second order regression. Meantime, the apparent dissolved CO inhibition has been found at 0.8 mM CO (equivalent to CO solubility under 1atm of PCO) from the plotting of C*vs C*/μ.

키워드

Carbon monoxide Oscillibacter sp. C5 fermenter

저자

  • Muhammad YASIN [ School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea. ]
  • Shinyoung PARK [ School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea. ]
  • In Seop CHANG [ School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea. ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
  • 설립연도
    1984
  • 분야
    공학>생물공학
  • 소개
    이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다 1. 생물공학 분야의 발전을 위한 연구 협력 2. 생물공학의 실용화를 촉진시키기 위한 산학 협동 3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최 4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간 5. 생물공학 발전을 위한 정책 건의 6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동

간행물

  • 간행물명
    한국생물공학회 학술대회
  • 간기
    반년간
  • 수록기간
    1985~2013
  • 십진분류
    KDC 476 DDC 576

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