| WANG Shuai,ZHENG Li,HAN Xiaotian,YANG Baijuan,LI Jingxi,SUN Chengjun. 2018. Lipid accumulation and CO2 utilization of two marine oil-rich microalgal strains in response to CO2 aeration. Acta Oceanologica Sinica, 37(2):119－126 |
| Lipid accumulation and CO2 utilization of two marine oil-rich microalgal strains in response to CO2 aeration |
| 富油微藻富碳培养下油脂积累及固碳研究 |
| Received:May 04, 2017 Revised:June 14, 2011 |
| DOI：10.1007/s13131-018-1171-y |
| Key words:Isochrysis galbana Nannochloropsis sp. CO2 enrichment cultivation neutral lipid biodiesel open raceway pond |
| 中文关键词: 球等鞭金藻 微拟球藻 CO2富碳培养 中性脂 生物柴油 跑道池 |
| 基金项目:The Basic Scientific Fund for National Public Research Institutes of China under contract Nos 2017Q09 and 2016Q02; the National Natural Science Foundation of China under contract No. 41776176; the National Key Research and Development Program of China under contract No. 2017YFC1404604; the Shandong Provincial Natural Science Foundation under contract No. ZR2015PD003; the 2012 Taishan Scholar. |
| Author Name | Affiliation | E-mail | | WANG Shuai | Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, the First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | ZHENG Li | Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, the First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China | zhengli@fio.org.cn | | HAN Xiaotian | Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | | | YANG Baijuan | Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, the First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | LI Jingxi | Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, the First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | SUN Chengjun | Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, the First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | |
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| Abstract: |
| Biological CO2 sequestration by microalgae is a promising and environmentally friendly technology applied to sequester CO2. The characteristics of neutral lipid accumulation by two marine oil-rich microalgal strains, namely, Isochrysis galbana and Nannochloropsis sp., through CO2 enrichment cultivation were investigated in this study. The optimum culture conditions of the two microalgal strains are 10% CO2 and f medium. The maximum biomass productivity, total lipid content, maximum lipid productivity, carbon content, and CO2 fixation ability of the two microalgal strains were obtained. The corresponding parameters of the two strains were as follows: ((142.42±4.58) g/(m2·d), (149.92±1.80) g/(m2·d)), ((39.95±0.77)%, (37.91±0.58)%), ((84.47±1.56) g/(m2·d), (89.90±1.98) g/(m2·d)), ((45.98±1.75)%, (46.88±2.01)%), and ((33.74±1.65) g/(m2·d), (34.08±1.32) g/(m2·d)). Results indicated that the two marine microalgal strains with high CO2 fixation ability are potential strains for marine biodiesel development coupled with CO2 emission reduction. |
| 中文摘要: |
| 微藻固碳是一种新型节能减排技术，具有长期可持续发展的潜力。本文对两株富油微藻（球等鞭金藻和微拟球藻）进行了富碳培养下生长特性及中性脂积累特性的研究。两株富油微藻的最佳培养条件为10%CO2浓度和f培养基。本研究对两株富油微藻的最大生物量产率、总脂含量、最大油脂产率、微藻的C含量和CO2固定率进行了测定。球等鞭金藻的各参数指标分别为：142.42±4.58g/（m2·d），39.95%±0.77%，84.47±1.56g/（m2·d），45.98%±1.75%和33.74±1.65g/（m2·d）。微拟球藻的各参数指标分别为：149.92±1.80g/（m2·d），37.91%±0.58%，89.90±1.98g/（m2·d），46.88%±2.01%和34.08±1.32g/（m2·d）。实验结果显示，两株海洋微藻均属于高固碳优良藻株，适合应用于微藻烟气减排技术开发，具备用于海洋生物质能耦合CO2减排开发的潜力。 |
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