원문정보
Environmental Stress Response of Calcite Forming Bacteria Isolated from Concrete Pavement
초록
영어
Microbially induced calcite precipitation (MICP) has been explored for protection and consolidation of construction materials such as concrete. In this study, we isolated 54 calcite forming bacteria from concrete pavement and selected 5 isolates which showed high specific urease activity. Also response of the 5 strains against various environmental stresses was examined. BC 4 and BC 5 showed 35% and 26% viability at heat stress (50℃), respectively. BC 1 and BC 4 maintained 60.4% and 70.4% viability upon osmotic stress (1 M NaCl), respectively. Among the 5 isolates BC 4 had the highest viability upon alkaline stress (pH 10).
목차
1. 서론
2. 재료 및 방법
2.1. 배지 및 시약
2.2. 균주의 분리
2.3. 요소 분해 활성 측정
2.4. 탄산칼슘형성 확인
2.5. 환경 스트레스 (pH, 염분, 온도)에 대한 생장율 비교
3. 결과 및 고찰
3.1. 요소 분해 활성 측정
3.2. 탄산칼슘 형성 확인
3.3. 스트레스 환경에 대한 생장률 비교
4. 결론
감사
References