Central composite design (CCD) optimization of phytohormones supplementation for enhanced cyanobacterial biodiesel production

Antonyraj Matharasi Perianaika Anahas and Gangatharan Muralitharan

Renewable Energy, 2019, vol. 130, issue C, 749-761

Abstract: 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 (I3C) 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 I3C 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 I3C promote the biomass and lipid productivity of tested heterocystous cyanobacterial strains.

Keywords: Cyanobacteria; Lipid enhancement; FAME profiles; Biodiesel quality; Chemical modulators (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148118307766
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:130:y:2019:i:c:p:749-761

DOI: 10.1016/j.renene.2018.06.110

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().