지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.3
- 수록면
- 78 - 83 (6page)
- DOI
- 10.7841/ksbbj.2020.35.1.78
이용수
초록· 키워드
오류제보하기
Beside the commercialized pigments from microalgae, such as astaxanthin, beta-carotene, and c-phycocyanin, zeaxanthin is another pigment with great potential for commercialization as it can be used to prevent or cure age-related macular degeneration. However, low zeaxanthin productivity due to its low content in microalgal biomass has been the major obstacle to commercialization. With recent advances in genome editing technology, a green microalga Chlamydomonas reinhardtii dZL was engineered to accumulate zeaxanthin with growth by knocking out enzymes that convert zeaxanthin into other carotenoids. In the present study, C. reinhardtii dZL was cultivated using TAP medium in 100 L flat-panel photobioreactors (PBRs), and the effect of initial cell density(ICD) on biomass productivity in batch operation was investigated. ICD of 0.1 g/L was predicted to yield highest biomass productivity from experiments using 2 L bubble column PBRs. In 100 L flat-panel PBRs, as ICD increased from 0.005 g/L to 0.08 g/L, biomass productivity was increased from 0.03 g/L/ day to 0.16 g/L/day. However, further increasing ICD from 0.08 g/L to 0.16 g/L reduced to 0.14 g/L/day as the maximum biomass concentration was limited by the light intensity. The results showed that ICD could affect biomass productivity in positive and negative ways, and thus ICD should carefully be determined with regards to the culture conditions. Such strategy could be applied to improve productivity for other compounds of interests in other microalgae as well.
목차
Abstract
1. INTRODUCTION
2. MATERIALS AND METHODS
3. RESULTS AND DISCUSSION
4. CONCLUSION
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2020-470-000539360