Nam Kyu Kang, Myounghoon Moon, Gang-Guk Choi, Min S. Park, Ji-WonYang
언어
영어(ENG)
URL
https://www.earticle.net/Article/A197678
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원문정보
초록
영어
Extensive utilization of fossil fuels has raised environmental pollution, climate change, and health problems. Under this situations, microalgae could be promising alternative energy source such as biodiesel. Moreover, microalgae have strong advantage points to solve environmental pollution through CO2 fixation and wastewater treatment. Generally, microalgae increase their cell numbers under optimized condition and then accumulate lipid under stress condition. Thus, it will be important issues to increase the lipid productivity and to decrease the cultivation cost1.Based on this background, our research focused on increasing the lipid productivity under extra-cellular oxidative stress by TiO2. Basically, TiO2 could produce oxygen radicals under UV condition. By using this mechanism, we hypothesize that under stress condition for growth, lipid in microalgae could be accumulated highly and rapidly2. Chlorella vulgaris was cultivated under the various concentrations of TiO2 from 0.1 to 5 g/L and UV-A conditions. By extra-cellular oxidative stress, chlorophyll and specific growth rate was decreased. Furthermore, Fatty Acid Methyl Ester (FAME) productivity was also decreased according to increasing the concentrations of TiO2. On the contrary, under the low concentrations of TiO2 (0.1 g/L) and short induction time, FAME contents and productivity was the highest. From these results, we suggest that induction by short time and low concentration of extra-celluar oxidative stress could increase the FAME contents and productivity. This work was supported by the Advanced Biomass R&D Center (ABC) of Global Frontier Project funded by the Ministry of Education, Science and Technology (ABC-2010-0029728)
키워드
MicroalgaeChlorella vulgarisPhotocatalystTiO2
저자
Nam Kyu Kang [ Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehakno, Yuseong-gu, Daejeon 305-701, Republic of Korea ]
Myounghoon Moon [ Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehakno, Yuseong-gu, Daejeon 305-701, Republic of Korea ]
Gang-Guk Choi [ Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehakno, Yuseong-gu, Daejeon 305-701, Republic of Korea ]
Min S. Park [ Department of Chemical and Biomolecular Engineering and, Advanced Biomass R&D Center, KAIST, 291 Daehakno, Yuseong-gu, Daejeon 305-701, Republic of Korea. ]
Ji-WonYang [ Department of Chemical and Biomolecular Engineering and, Advanced Biomass R&D Center, KAIST, 291 Daehakno, Yuseong-gu, Daejeon 305-701, Republic of Korea. ]
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