Effects of simulated flue gases on growth and lipid production of Chlorella sorokiniana CS-01  

作　　者：夏金兰 巩三强 金雪洁 万民熙 聂珍媛 

机构地区：[1]School of Minerals Processing and Bioengineering,Central South University

出　　处：《Journal of Central South University》2013年第3期730-736,共7页中南大学学报（英文版）

基　　金：Project(50621063) supported by the National Natural Science Foundation for Distinguished Group of China;Projects(2010bsxt05,2010ssxt246) supported by the Innovation Foundation of Science and Technology of Central South University,China

摘　　要：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.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.

关 键 词：MICROALGAE Chlorella sorokiniana flue gases CO2 mitigation BIODIESEL 

分 类 号：TE667[石油与天然气工程—油气加工工程]