원문정보
Production of Emulsan by Acinetobacter calcoaceticus RAG-1 under Various Culture Modes
초록
영어
Emulsan is an extracellular emulsifying agent produced by the hydrocarbon-degrading Acinetobacter species RAG-1. In this study emulsan production of Acinetobacter calcpaceticus RAG-1 was investigated under various culture modes such as batch, fed-batch, membrane cell recycle, and continuous culture. The productions of emulsan under both ethanol-sufficient fed-batch and membrane cell recycle cultures were all 15.0U/ml, which was 53% increase in emulsan activity compared to that of pH controlled batch culture. Emulsan production was found to be strongly dependent on the residual ethanol concentration. In continuous culture the emulsan productivity increased with dilution rate.
목차
서론
재료 및 방법
균주
배양배지
배양방법
분석방법
결과 및 고찰
탄소원에 대한 영향
회분식 배양에서 pH에 대한 영향
에탄올 첨가에 대한 emulsan의 생산의 영향
유가식 배양
막 재순환 반응기에서의 배양
연속 배양
배양방법에 따른 emulsan의 농도와 생산성의 비교
요약
참고문헌