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논문 기본 정보

자료유형
학술저널
저자정보
Won-Sub Shin (KAIST) Simon MoonGeun Jung (Korea Research Institute of Chemical Technology) Chang-Ho Cho (Gyeongsang National University) Do-Wook Woo (Gyeongsang National University) Woong Kim (Kyungpook National University) Jong-Hee Kwon (Gyeongsang National University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제23권 제2호
발행연도
2018.6
수록면
205 - 209 (5page)

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초록· 키워드

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The spectral composition of light can affect the growth and biochemical composition of photosynthetic microalgae. This study examined the use of light filtering through a solution of soluble colored additives, a cost-effective method to alter the light spectrum, on the growth and lipid production of an oleaginous microalga, Nannochloropsis gaditana (N. gaditana). Cells were photoautotrophically cultivated under a white light emitting diode (LED) alone (control) or under a white LED that passed through a solution of red and yellow color additive (4:1 ratio) that blocked light below 600 nm. The specific growth rate was significantly greater under filtered light than white light (0.2672 d<SUP>-1</SUP> vs. 0.1930 d<SUP>-1</SUP>). Growth under filtered light also increased the fatty acid methyl ester (FAME) yield by 22.4% and FAME productivity by 80.0%, relative to the white light control. In addition, the content of saturated fatty acids was greater under filtered light, so the biodiesel products had better stability. These results show that passing white light through an inexpensive color filter can simultaneously enhance cellular growth and lipid productivity of N. gaditana. This approach of optimizing the light spectrum may be applicable to other species of microalgae.

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ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References

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