Journal
BIORESOURCE TECHNOLOGY
Volume 198, Issue -, Pages 876-883Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.09.085
Keywords
Ankistrodesmus fusiformis; Biodiesel production; Inoculum density; Photoperiod; Light intensity
Funding
- National 863 program [2013AA065804]
- Science and technology special basic work project [2012FY12900]
- Platform construction of oleaginous microalgae (Institute of Hydrobiology, CAS of China)
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The aim of this study was to optimize the light regimes including initial inoculum density, photoperiod and light intensity on the growth and lipid (TAG) accumulation in Ankistrodesmus fusiformis H1 for biodiesel production. At last, the strategy of 4.47 mM urea with initial OD680-0.5, 18: 6 h light/dark cycle and 200 lmol photon m(-2) s(-1) regimes were optimized. The lipid productivity of 116.88 mg L-1 d(-1) and 57.58% neutral lipid in total lipid were achieved finally. Moreover, the changes of photosynthetic activity, pigments contents and biochemical compositions revealed that more carbon flow to lipid synthesis. Therefore, A. fusiformis H1 is an ideal candidate for biodiesel production by utilizing light appropriately. (C) 2015 Elsevier Ltd. All rights reserved.
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