Earticle

초록

영어

The relationships between the explosive 2,4,6-trinitrotoluene (TNT) degradation by Stenotrophomonas maltophilia and several relevant physicochemical environmental parameters were examined. At neutral pH of the cultures, the degradation of TNT proceeded to completion, whereas only about 50% of TNT was utilized when the cultures were adjusted to acidic pH. The effect of various co-substrates (e.g., glucose, fructose, acetate, citrate, succinate) on the degradation of TNT by the test culture of S. maltophilia was evaluated. The results indicated that, among the various co-substrates studies, the test culture that received 2 mM fructose degraded 100 mg/L of TNT completely within 20 days of incubation at ambient temperature, whereas partial degradation of TNT was observed in the test culture with acetate, citrate, or succinate as a co-substrate, respectively. In fact, fructose was the best co-substrate for TNT degradation in this experiment. The effect of supplemented nitrogens [e.g., (NH),SO, NHCl. urea] on the TNT degradation was monitored. All supplemented nitrogens in this study were inhibitory to TNT degradation. Addition of 1% Tween80 accelerated TNT degradation, and showed complete degradation of TNT within 8 days of incubation. Addition of yeast extract resulted higher growth yields, based on turbidity measurement, but it inhibited TNT degradation.

목차

서론
 재료 및 방법
  순수배양균주의 확보 및 배양조건
  TNT 분해능 측정방법
  TNT 분해균주의 특성과 동정
  TNT분해에 영향을 미치는 환경요인
 결과 및 고찰
  TNT 분해균주의 분리와 동정
  분해균주에 의한 TNT 분해
  TNT 분해에 미치는 환경요인
 요약
 참고문헌

키워드

저자

• 김영진 [ Young-Jin Kim | 순천향대학교 생명과학과 ]
• 이명석 [ Myung-Seok Lee | 순천향대학교 생명과학과 ]
• 조윤석 [ Yun-Seok Cho | 순천향대학교 생명과학과 ]
• 한현각 [ Hyun-Kak Han | 순천향대학교 화학공학과 ]
• 김승기 [ Seungki Kim | 한국과학기술연구원 ]
• 오계현 [ Kye-Heon Oh | 순천향대학교 생명과학과 ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  KSBB Journal

• 간기

  격월간

• pISSN

  1225-7117

• 수록기간

  2009~2013

• 십진분류

  KDC 476 DDC 576