期刊
RENEWABLE ENERGY
卷 130, 期 -, 页码 749-761出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2018.06.110
关键词
Cyanobacteria; Lipid enhancement; FAME profiles; Biodiesel quality; Chemical modulators
资金
- University Grants Commission (UGC), Government of India
- Maulana Azad National Fellowship Scheme (MANF) [F1-17.1/2010/TVIANF-CHR-TAM-2530]
- DST-FIST programme [SR/FIST/LSI-013/2012]
Based on our previous findings, two potent cyanobacterial strains namely, Anabaena sphaerica MBDU 105 and Nostoc calcicola MBDU 602 showed suitability for biodiesel production were chosen in this study to enhance biomass and lipid accumulation. The present study investigated the effect of nutrient supplementation with different carbons sources, chemical modulators and nutrient starvation on lipid accumulation. Nutrient supplementation with organic carbon sources yielded higher biomass (5.38-7.96 fold) and lipid productivity (2.81-2.19 fold) rather than lipid content. For chemical modulators, indole-3-carboxaldehyde (13C) and kinetin (KT) increased lipid accumulation by 22 +/- 1.9 and 34 +/- 1 (% dwt), respectively. Therefore, central composite design was performed to assess the interactive effect of 13C and KT on lipid content, biomass and lipid productivity, fatty acid composition and their fuel properties. To the best of our knowledge, this is the first report demonstrating that DC promote the biomass and lipid productivity of tested heterocystous cyanobacterial strains. (C) 2018 Elsevier Ltd. All rights reserved.
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