期刊
BIORESOURCE TECHNOLOGY
卷 197, 期 -, 页码 178-184出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.08.068
关键词
Diethyl aminoethyl hexanoate; Microalgae; Growth; Biodiesel; Biochemical composition
资金
- National Science Fund for Excellent Young Scholars [51322811]
- Science and Technology Development Planning of Shandong Province [2012GGE27027]
- Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-12-0341]
The low productivity of microalgae has restricted scale-up application of microalgae-based biodiesel processes. Diethyl aminoethyl hexanoate (DA-6) was investigated to enhance the biomass and metabolite productivity. At a very low concentration (10 (7) M) DA-6 made Chlorella ellipsoidea SDEC-11 and Scenedesmus quadricauda SDEC-13 obtain enlarged cell size, 114 mg L (1) d (1), 101 mg L (1) d (1) biomass productivity and 39.13 mg L (1) d (1), 32.69 mg L (1) d (1) lipid productivity, respectively. Biomass and lipid productivity of SDEC-11 and SDEC-13 were 100 mg L (1) d (1) and 30.05 mg L (1) d (1), 94 mg L (1) d(1) and 28.43 mg L (1) d (1), respectively, without DA-6. Twice hormone dose in 106 M DA-6 medium resulted in higher biomass productivity (106 mg L (1) d (1)) and longer exponential growth of SDEC-13. DA-6 also ensured the property of microalgae biodiesel to meet the EN 14214 standard. The current investigation demonstrated that DA-6 accelerated the microalgae growth and simultaneously improved the quality and quantity of lipid for biodiesel production. (C) 2015 Elsevier Ltd. All rights reserved.
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