Maximizing CO2 biofixation and lipid productivity of oleaginous microalga Graesiella sp WBG-1 via CO2-regulated pH in indoor and outdoor open reactors
文献类型：期刊论文
| 作者 | Li, Yeguang; Ding, Yi; Geng, Yahong; Wang, Zhongjie; Wen, Xiaobin; Xu, Yan |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 619页码:827-833 |
| 关键词 | Microalgae Carbon dioxide fixation Biodiesel pH Graesiella |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2017.10.127 |
| 英文摘要 | Carbon dioxide (CO2) and pH are two interdependent factors that greatly impact the growth and lipid accumulation of microalgae. However, the effects of these two factors are usually studied separately. The use of exogenous CO2, such as flue gas derived, to regulate pH in the large-scale cultivation of microalgae provides an ideal means for combining CO2 biofixation and biodiesel production. In this study, the CO2 biofixation and lipid production of oleaginous microalga Graesiella sp. WBG(-1) was explored for four pH levels regulated by exogenous 15% CO2 (flue gas concentration) in 10 L circular culture ponds and 5 m(2) open raceway reactors. Results revealed that pH 8.0-9.0 was the optimum pH for CO2 fixation and lipid production, attaining the highest CO2 fixation rates of 0.26 g L-1 day(-1) and 18.9 g m(-2) day(-1), respectively, lipid contents of 46.28% and 32.38%, and lipid productivities of 64.8 mg L-1 day(-1) and 3.14 g m(-2) day(-1). A positive correlation between CO2 utilization efficiency and pH in open reactors was also suggested in this research, and thus provides direction for screening of CO2 fixation by microalgae. The present study provides an excellent strategy for coupling CO2 fixation and lipid production via microalgae in large-scale cultivation. (C) 2017 Elsevier B.V. All rights reserved. |
| 资助项目 | National High Technology Research and Development Program of China (863 Program)[2014AA022001] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000424144200084 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/4755]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Yeguang |
| 作者单位 | Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yeguang,Ding, Yi,Geng, Yahong,et al. Maximizing CO2 biofixation and lipid productivity of oleaginous microalga Graesiella sp WBG-1 via CO2-regulated pH in indoor and outdoor open reactors[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,619:827-833. |
| APA | Li, Yeguang,Ding, Yi,Geng, Yahong,Wang, Zhongjie,Wen, Xiaobin,&Xu, Yan.(2018).Maximizing CO2 biofixation and lipid productivity of oleaginous microalga Graesiella sp WBG-1 via CO2-regulated pH in indoor and outdoor open reactors.SCIENCE OF THE TOTAL ENVIRONMENT,619,827-833. |
| MLA | Li, Yeguang,et al."Maximizing CO2 biofixation and lipid productivity of oleaginous microalga Graesiella sp WBG-1 via CO2-regulated pH in indoor and outdoor open reactors".SCIENCE OF THE TOTAL ENVIRONMENT 619(2018):827-833. |
入库方式： OAI收割
来源：武汉植物园
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