title: Effects of simulated flue gas on components of Scenedesmus raciborskii WZKMT.
abstract: 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.
authors.affiliation: 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.
authors.forename: Xie-kun
authors.initials: XK
authors.lastname: Li
authors.affiliation: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy, CAS, Guangzhou 510640, China. Electronic address: xjl@ms.giec.ac.cn.
authors.forename: Jing-liang
authors.initials: JL
authors.lastname: Xu
authors.affiliation: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy, CAS, Guangzhou 510640, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Guo
authors.affiliation: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy, CAS, Guangzhou 510640, China.
authors.forename: Wei-zheng
authors.initials: WZ
authors.lastname: Zhou
authors.affiliation: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy, CAS, Guangzhou 510640, China.
authors.forename: Zhen-hong
authors.initials: ZH
authors.lastname: Yuan
mesh_terms: D000393:Air Pollutants / Q000302:isolation & purification / Q000378:metabolism* / Q000494:pharmacology*; D001673:Biodegradation, Environmental; D050260:Carbohydrate Metabolism / Q000187:drug effects / Q000502:physiology; D002245:Carbon Dioxide / Q000737:chemistry* / Q000494:pharmacology; D049109:Cell Proliferation / Q000187:drug effects / Q000502:physiology; D005740:Gases / Q000378:metabolism* / Q000494:pharmacology*; D008657:Metabolic Clearance Rate; D044444:Scenedesmus / Q000145:classification / Q000187:drug effects / Q000502:physiology*; D013045:Species Specificity
chemical_list: D000393:Air Pollutants; D005740:Gases; D002245:Carbon Dioxide
keywords: Lipid; Microalgae; Simulated flue gas; Starch