effects of simulated flue gases on growth and lipid production of Chlorella sorokiniana CS-01
来源期刊：中南大学学报(英文版)2013年第3期
论文作者：XIA Jin-lan(夏金兰) GONG San-qiang(巩三强) JIN Xue-jie(金雪洁) WAN Min-xi(万民熙) NIE Zhen-yuan(聂珍媛)
文章页码：730 - 736
Key words：microalgae; Chlorella sorokiniana; flue gases CO2 mitigation; biodiesel
Abstract: To study the abilities of Chlorella sorokiniana CS-01 on using CO2 from flue gases to produce biodiesel, the microaglae was cultured with different simulated flue gases containing 5%-15% (volume fraction) of CO2. The results show that strain CS-01 could grow at 15% CO2 and grow well under CO2 contents ranging from 5%-10%. The maximal biomass productivity and lipid productivity were obtained when aerating with 10% of CO2. The lipids content ranged from 28% to 43% of dry mass of biomass. The main fatty acid compositions of strain CS-01 were C14-C18 (>72%) short-chain FAMEs (known as biodiesel feedstocks). meanwhile, the biodiesel productivity was over 60%, suggesting that Chlorella sorokiniana CS-01 has a great potential for CO2 mitigation and biodiesel production. Furthermore, differential expression of three genes related to CO2 fixation and fatty acid synthesis were studied to further describe the effect of simulated flue gases on the growth and lipid accumulation of strain CS-01 at molecular level.
XIA Jin-lan(夏金兰), GONG San-qiang(巩三强), JIN Xue-jie(金雪洁), WAN Min-xi(万民熙), NIE Zhen-yuan(聂珍媛)
(School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)
Abstract:To study the abilities of Chlorella sorokiniana CS-01 on using CO2 from flue gases to produce biodiesel, the microaglae was cultured with different simulated flue gases containing 5%-15% (volume fraction) of CO2. The results show that strain CS-01 could grow at 15% CO2 and grow well under CO2 contents ranging from 5%-10%. The maximal biomass productivity and lipid productivity were obtained when aerating with 10% of CO2. The lipids content ranged from 28% to 43% of dry mass of biomass. The main fatty acid compositions of strain CS-01 were C14-C18 (>72%) short-chain FAMEs (known as biodiesel feedstocks). meanwhile, the biodiesel productivity was over 60%, suggesting that Chlorella sorokiniana CS-01 has a great potential for CO2 mitigation and biodiesel production. Furthermore, differential expression of three genes related to CO2 fixation and fatty acid synthesis were studied to further describe the effect of simulated flue gases on the growth and lipid accumulation of strain CS-01 at molecular level.
Key words:microalgae; Chlorella sorokiniana; flue gases CO2 mitigation; biodiesel
