It is reported that carotenoid production can be affected by carbon sources used for growing metabolically engineered Escherichia coli expressing heterologous carotenoid pathway enzymes. In order to systematically study the effect of carbon sources on cell growth and carotenoid formation in metabolically engineered E. coli, six carbon sources (glucose, glycerol, galactose, lactose, mannose and maltose) and four carotenoid structures were chosen. The biosynthetic pathways for four carotenoids, C30 diapolycopene, C30 diapotorulene, C40 lycopene, and C40 beta-carotene, were engineered in E. coli and then the recombinant strains were grown in mineral media supplemented with the carbon sources. Among the six carbon sources, glycerol showed highest performance in the production of all four carotenoids in E. coli. Worst performance was observed in a medium containing glucose as a carbon source. Although the growth rate and final cell density were similar in media containing carbon sources, the highest carotenoid productivity was obtained in E. coli cells grown on glycerol as a carbon source.
키워드
Carbon sourceCarotenoidMetabolic Engineering
저자
JongRea KIM [ Dept. of Molecular Science and Technology, Ajou University ]
Pyung Cheon LEE [ Dept. of Molecular Science and Technology, Ajou University ]
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