Renewable Culture of Microalgae Isochrysis Galbana

摘要：

　　This aim of this paper is to research on culturing marine algae with high efficiency.Using microalgae Isochrysis Galbana as a model organism,a rapid growth regularity of microalgae in 4.5-L bioreactor was discovered under optimized culture condition,namely,specific growth rates of microalgae from the fourth day to the seventh day at maximum phase (631~905×104 cells·mL-1·day-1).Accordingly,a renewable model of culture microalgae was proposed,namely,at the end of exponential growth,microalgae of 2-L was taken from the bioreactor of 4.5-L,and then sterile natural seawater (SNSW) of 2-L was added into the bioreactor with remaining microalgae of 2-L,now microalgae density was approximately 1800 × 104 cells/mL,with which Isochrysis Galbana will grow under maximum specific growth rate.After two days,density of microalgae reached to 4000 × 104 cells/mL.We repeated the culture process of 2 day three times.Compared with the traditional model of culture microalgae,more than 42% microalgae biomass in per day was obtained in a 4.5-L bioreactor through the renewable culture.Here the renewable model of culture microalgae offered great potential for supplying raw materials of microalgae bioenergy.

关键词： microalgae Isochrysis Galbana renewable culture high efficiency

作者: Wantao FU Tianwei FENG Yuan LIU Shuqing CAO Hongwen LIU

作者单位: Collage of Marine Science-Technology and Environment, Dalian Ocean University, Dalian, 116023, China Collage of Marine Science-Technology and Environment, Dalian Ocean University, Dalian, 116023, China Collage of Life and Fisheries, Dalian Ocean University, Dalian, 116023, China Center of Environment Monitoring of Dalian, Dalian, 116023, China

会议类型: 国内会议

会议名称: 第四届中国能源科学家论坛

会议地点: 北京

会议语种:英文

页码: 147-151

在线出版日期: 2012-11-01（万方平台首次上网日期，不代表论文的发表时间）