Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
Bioresour Technol. 2014 Sep;167:503-9. doi: 10.1016/j.biortech.2014.06.047. Epub 2014 Jun 20.
Nannochloropsis have attracted sustained interest from algal biodiesel researchers due to their high biomass accumulation rate and high lipid content. There are six recognized species in the Nannochloropsis genus that are phylogenetically divided into Nannochloropsis gaditana, Nannochloropsis salina, Nannochloropsis granulata, Nannochloropsis limnetica, Nannochloropsis oceanica and Nannochloropsis oculata. In this study, the potential of 9 Nannochloropsis species from the 6 genus for biodiesel production was evaluated by determining their growth rate, biomass accumulation, lipid productivity, lipid composition, fatty acid profiles and biodiesel properties. The results showed that the best strain was N. oceanica IMET1, with lipid productivity of 158.76 ± 13.83 mg L(-1)day(-1), TAG production of 1.67 ± 0.20 g/L, favorable fatty acid profiles of C16-C18 (56.62 ± 1.96%) as well as suitable biodiesel properties of higher cetane number (54.61 ± 0.25), lower iodine number (104.85 ± 2.80 g I2/100g) and relative low cloud point (3.45 ± 0.50°C). N. oceanica IMET1 could be consider as valuable feedstock for microalgal biodiesel production.
微拟球藻由于其高生物质积累率和高脂质含量而引起了藻类生物柴油研究人员的持续关注。在微拟球藻属中有六个已被识别的物种，它们在系统发育上分为盐生微拟球藻、盐藻微拟球藻、颗粒微拟球藻、小环藻微拟球藻、海洋微拟球藻和眼点微拟球藻。在这项研究中，通过测定生长速度、生物量积累、产油率、脂质组成、脂肪酸谱和生物柴油特性，评估了来自这 6 个属的 9 种微拟球藻用于生物柴油生产的潜力。结果表明，最好的菌株是海洋微拟球藻 I MET1，其产油率为 158.76 ± 13.83 mg L(-1)day(-1)，TAG 产量为 1.67 ± 0.20 g/L，具有理想的脂肪酸谱（C16-C18：56.62 ± 1.96%）和适宜的生物柴油特性，如较高的十六烷值（54.61 ± 0.25）、较低的碘值（104.85 ± 2.80 g I2/100g）和相对较低的浊点（3.45 ± 0.50°C）。海洋微拟球藻 I MET1 可以被认为是微藻生物柴油生产的有价值的原料。
