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논문 기본 정보

자료유형
학술대회자료
저자정보
(KAIST) (KAIST) (Ewha Womans University) (Chonnam National University) (Korea Research Institute of Chemical Technology) (KAIST) (KAIST)
저널정보
한국미생물학회 한국미생물학회 학술대회논문집 2017년도 International Meeting of the Microbiological Society of Korea
발행연도
수록면
210 - 210 (1page)

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초록· 키워드

Polyhydroxyalkanoates (PHAs) are bio-based polyesters accumulated in many bacteria. The production of PHAs has a great interest in that they are biodegradable and biocompatible thermoplastics. Especially, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB-co-3HV)] is a meaningful copolymer with its lower melting point and better flexibility compared to commercial polymers. However, addition of second auxiliary carbon source was the drawback for production of P(3-HB-co-3HV) should be followed. Second auxiliary carbon makes it hard to maintain the balance between cell growth and P(3HB-co-3HV) production with its toxicity. Thus, we developed the system in which the E. coli can stably synthesize 3HB-CoA and 3HV-CoA with controlled ratio from glucose without exogenous auxiliary carbon source. Two different metabolic pathways for the production of propionyl-CoA from 2-ketobutyrate were constructed via conversion to propionate as an intermediate. This metabolically engineered strain can synthesize P(3HB-co-3HV) efficiently without feeding any exogenous auxiliary carbon source. Polyhydroxyalkanoates (PHAs) are bacterial pol ... 전체 초록 보기
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UCI(KEPA) : I410-ECN-0101-2017-475-002369666