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中国生物工程杂志

China Biotechnology
China Biotechnology
China Biotechnology  2016, Vol. 36 Issue (10): 45-52    DOI: 10.13523/j.cb.20161007
    
The Efficient Carbon-oxygen Transformation and Regulation of Desert Microalgaes
WANG Cai-xia1, ZHANG Teng-jiang2, TENG Jie2, FENG Xu-dong2, LI Chun1,2
1. School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China;
2. School of Life Science, Beijing Institute of Technology, Beijing 100081, China
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Abstract  

In order to produce biofuels by the use of microalgae and improve the efficiency of carbon-oxygen transfer in a confined environment, the growth of desert microalgae BG18-3, BE6-2 and freshwater cyanobacterial strain 7924 were thoroughly explored in stressed conditions, and microalgae BG18-3 was found to have the best performance in some stressed conditions. Compared to other two strains of microalgae in static culture, desert microalgae BG1-3 had an advantage on microalgae biomass accumulation and nitrogen and phosphorus removal efficiency, of which the biomass dry weight reached 0.26 g/L, nitrogen and phosphate removal efficiency were 36% and 99%, respectively. In the aeration culture of desert microalgae BG18-3 ventilation, the highest biological dry weight (3% CO2 aeration cultured for 16 days) and the biomass yield reached 2.63 g/L and 164.0 mg/L·d respectively, and the concentration of CO2 at the outlet dropped to 0.04%, while the concentration of O2 increased by 0.68%, which indicates that the BG18-3 has the potential to be a biological medium in a confined environment. Finally, the BG18-3 was identified as Scenedesmus littoralis according to the results of rDNA 18s analysis.

Key words： Carbon-oxygen transformation      Stress resistance      Desert microalgae     
Received: 25 March 2016      Published: 25 October 2016
ZTFLH:  Q819  
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Cite this article:

WANG Cai-xia, ZHANG Teng-jiang, TENG Jie, FENG Xu-dong, LI Chun. The Efficient Carbon-oxygen Transformation and Regulation of Desert Microalgaes. China Biotechnology, 2016, 36(10): 45-52.

URL:

https://manu60.magtech.com.cn/biotech/10.13523/j.cb.20161007     OR     https://manu60.magtech.com.cn/biotech/Y2016/V36/I10/45

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