Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy, CAS, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy, CAS, Guangzhou 510640, China.
Bioresour Technol. 2015 Aug;190:339-44. doi: 10.1016/j.biortech.2015.04.093. Epub 2015 May 5.
Scenedesmus raciborskii WZKMT cultured with simulated flue gas was investigated. Cellular components, including total sugar, starch, chlorophyll, protein and lipid, were compared between simulated flue gas and 7% (v/v) CO2. Dissolution of SO2 and NO in simulated flue gas led to pH decrease and toxicity to microalgae cells. Furthermore, the death or aging of microalgae cells reduced the buffer capacity and caused decrease of simulated flue gas absorption. With 7% CO2, the highest total sugar and starch content could attain to 66.76% and 53.16%, respectively, which indicated S. raciborskii WZKMT is a desired feedstock candidate for bioethanol production. Microalgae growth and starch accumulation was inhibited, while cells produced more chlorophyll, protein and lipid when simulated flue gas was the carbon source. Fatty acids composition analysis indicated that there was no significant distinction on fatty acids relative content (fatty acid/TFA) between cells aerated using simulated flue gas and 7% CO2.
利用模拟烟气对 Raciborskii 栅藻（Scenedesmus raciborskii WZKMT）进行了培养研究。对模拟烟气和 7%（v/v）CO2 中栅藻细胞的总糖、淀粉、叶绿素、蛋白质和脂质等细胞成分进行了比较。模拟烟气中 SO2 和 NO 的溶解导致 pH 值下降和对微藻细胞的毒性。此外，微藻细胞的死亡或衰老降低了缓冲能力，并导致模拟烟气的吸收减少。在 7% CO2 条件下，总糖和淀粉的含量最高分别可达 66.76%和 53.16%，表明 Raciborskii 栅藻 WZKMT 是生物乙醇生产的理想原料候选物。当模拟烟气作为碳源时，微藻的生长和淀粉积累受到抑制，而细胞产生更多的叶绿素、蛋白质和脂质。脂肪酸组成分析表明，用模拟烟气和 7% CO2 通气的细胞之间的脂肪酸相对含量（脂肪酸/TFA）没有显著差异。
