기관회원 [로그인]
소속기관에서 받은 아이디, 비밀번호를 입력해 주세요.
개인회원 [로그인]

비회원 구매시 입력하신 핸드폰번호를 입력해 주세요.
본인 인증 후 구매내역을 확인하실 수 있습니다.

회원가입
서지반출
Batch and Fed-batch Production of Hyperthermostable $alpha$-L-Arabinofuranosidase of Thermotoga maritima in Recombinant Escherichia coli by Using Constitutive and Inducible Promoters
[STEP1]서지반출 형식 선택
파일형식
@
서지도구
SNS
기타
[STEP2]서지반출 정보 선택
  • 제목
  • URL
돌아가기
확인
취소
  • Batch and Fed-batch Production of Hyperthermostable $alpha$-L-Arabinofuranosidase of Thermotoga maritima in Recombinant Escherichia coli by Using Constitutive and Inducible Promoters
  • Batch and Fed-batch Production of Hyperthermostable $alpha$-L-Arabinofuranosidase of Thermotoga maritima in Recombinant Escherichia coli by Using Constitutive and Inducible Promoters
저자명
Song. Jae-Yong,Keum. In-Kyung,Jin. Qing,Park. Jung-Mi,Kim. Beom-Soo,Jung. Bong-Hwan,Kim. Tae-Jip,Han. Nam-Soo
간행물명
Food science and biotechnology
권/호정보
2008년|17권 5호|pp.990-995 (6 pages)
발행정보
한국식품과학회
파일정보
정기간행물|ENG|
PDF텍스트
주제분야
기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

A thermostable $alpha$-L-arabinofuranosidases ($alpha$-L-AFase) is an industrially important enzyme for recovery of L-arabinose from hemicellulose. The recombinant $alpha$-L-AFase from Thermotoga maritima was expressed in Escherichia coli by using a constitutive pHCE or an inducible pRSET vectors. In batch fermentation, the constitutive expression system resulted in slightly faster growth rate (0.78 vs. 0.74/hr) but lower enzyme activity (2,553 vs. 3,723 units/L) than those of the induction system. When fed-batch fermentation was performed, biomass and enzyme activity reached the highest levels of 36 g/L and 9,152 units/L, respectively. The fed batch cultures performed superior results than batch culture in terms of biomass yield (4.62-5.42 folds) and enzyme synthesis (3.39-4.00 folds). In addition, the fed-batch induction strategy at high cell density resulted in the best productivity in cell growth as well as enzyme activity rather than the induction method at low cell density or the constitutive expression.