Light is the most important parameters in the mass cultivation of microalgae in photobioreactors (PBRs). Microalgae have the ability to utilize sunlight energy for the production of fine chemicals and for biofuels. Microalgal photosynthetic efficiency is higher than that of higher plants. Although algae can only use all the photons of visible light, other colored photons could have different effects and efficiency on cell growth and metabolism. Chlorella vulgaris UTEX 295 was cultivated in 0.4L bubble column PBRs with supplementation of three different monochromatic LEDs (470, 525, and 660 nm) in addition to white light from fluorescent lamps.The results indicated that fresh cell weight and total lipid concentration were positively increased by over 11% and 10%, respectively, under the condition of long wavelength supplement. In fatty acid methyl ester (FAME) composition, short and long wavelength supplement have the positive effects on linolenic acid and oleic acid methyl ester concentration, respectively. By analogy with the results, we hypothesized that the specific wavelength of light could affect the cell niche. In order to confirm this hypothesis, additional studies with Dunaliella tertiolecta were conducted with colored plastic filter film in red and blue in outdoor cultivation. The results clearly showed that final biomass concentrations under the red and the blue were 41% and 37% higher, respectively, than the control. Moreover, the major FAMEs were increased by 9-11% under the blue colored film and total FAME productivity was also increased by 49% and 34% in the red and the blue, respectively. Therefore, we propose that certain wavelength of light could induce high quality biodiesel.
키워드
LEDbiodieselChlorella vulgaris
저자
Kwang-Kuk CHO [ Dept. of Biotechonolgy Engineering, Inha University, Incheon, 402-751. ]
Dong-Keon KIM [ Dept. of Biotechonolgy Engineering, Inha University, Incheon, 402-751. ]
Choul-Gyun LEE [ Dept. of Biotechonolgy Engineering, Inha University, Incheon, 402-751. ]
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
간행물
간행물명
한국생물공학회 학술대회
간기
반년간
수록기간
1985~2013
십진분류
KDC 476DDC 576
이 권호 내 다른 논문 / 한국생물공학회 학술대회 2011년도 한국생물공학회 춘계학술발표대회