The objective of this study was to investigate the effect of acetic acid and formic acid on the ABE production by C. acetobutylicum and C. beijerinckii. The effect of co-presence of acetic acid and formic acid was also examined. In the case of Clostridium acetobutylicum, added acetic acid (3.7-9.7 g/L level) slightly increased the total ABE concentration, but drastically decreased in the presence of 11.7 g/L of acetic acid. However, C. beijerinckii was not affected on the solvents production by the acetic acid in the range of 3.7-11.7 g/L. C. acetobutylicum was more vulnerable for the tested acid conditions than C. beijerinckii. Especially, formic acid has the fatal inhibition effect on the ABE production by C. acetobutylicum. However, C. beijerinckii showed a strong tolerance for the tested acids. . In the hydrolysis process, acetic acid and formic acid can be co-existed in acid hydrolysate. Therefore, it is concluded that C. beijerinckii is more favorable than C. acetobutylicum when the ABE production is performed using lignocellulosic hydrolysate containing acetic and formic acid.
키워드
Clostridium acetobutylicumClostridium beijerinckiiacetic acidformic acidABE production
저자
Dae Haeng CHO [ Dept. of Chemical Eng. Kwangwoon University. ]
Soo-Jeong SHIN [ Dept. of Wood and Paper Science, Chungbuk National Unbiversity. ]
Yong Hwan KIM [ Dept. of Chemical Eng. Kwangwoon University. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동