원문정보
Effect of Dissolved Oxygen on the Growth of Azotobacter vinelandii UWD and Production of PHBV in the Mixture of Organic Acids and Glucose
초록
영어
In both 7L and 20L fermentor experiments the level of dissolved oxygen (D.O) strongly affected growth and PHBV production of Azotobacter vinelandii UWD. A higher D.O. increased carbon substrate consumption rate and cell growth rate with a similar residual biomass production. However, a lower D.O. was a much better condition for PHBV production. In a 20L fermentor experiments controlled at 5% D.O. cell growth rate was about twice faster(0.555 hr-1 and 0.260 hr-1 at the acid and the glucose phase, respectively) with an equal amount(4.5 g/L) of residual biomass production. However, PHBV content in the cell(62.3 wt%) increased 17.3 times at 1% D.O.
목차
재료 및 방법
균주
생장 배지
7L발효기 System
20L발효기 System
On-line 데이터 수집 시스템
시료 분석
포도당 농도 분석
PHBV 분석
유기산 농도 분석
암모늄 분석
결과 및 고찰
7L 발효기를 이용한 동기실험
20L 발효기를 이용한 동기실험
요약
감사
참고문헌