원문정보
Characteristics of Organic Acid Degradation by Yeast
초록
영어
Characteristics of organic acid degradation by isolated yeast strain was investigated. Optimum initial pH was 5. Increase in cell mass was proportional to the decrease in organic acid degradation. Also no accumulation of byproduct was observed during degradation. Acetic acid degraded fast, followed by butyric acid and propionic acid in order. No significant substrate inhibition was observed up to 12 g/L of acetic acid 7 g/L of propionic acid, respectively. However, inhibition of butyric acid was significant above 4 g/L. Cell mass yield was 0.2-0.4 g cell/g acids and decreased at high decreased at high organic acid concentration. 95% of organic acid (7.5 g/L), corresponding to 13,000 ppm, was degraded in 30-40 hours.
목차
재료 및 방법
유기산 분해 효모 분리
분석
결과 및 고찰
혼합유기산의 분해특성
초기 pH가 혼합유기산 폐수의 분해와 균체성장에 미치는 영향
균체초기농도 및 유기산초기농도가 비성장속도(u)와 유기산분해속도(Qs)에 미치는 영향
균체초기농도 및 유기산초기농도와 유기산분해시간 사이의 함수관계
결론
감사의 글
참고문헌