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Assessment of Chemical and Physico-Chemical Properties of Cyanobacterial Lipids for Biodiesel Production
Engineering School of Lorena, University of São Paulo, 12602-810, Lorena SP, Brazil
Center of Nuclear Energy in Agriculture, University of São Paulo, 13400-970, Piracicaba SP, Brazil
* Author to whom correspondence should be addressed.
Received: 26 April 2013; in revised form: 8 June 2013 / Accepted: 18 June 2013 / Published: 4 July 2013
Abstract: Five non-toxin producing cyanobacterial isolates from the genera Synechococcus, Trichormus, Microcystis, Leptolyngbya and Chlorogloea were examined in terms of quantity and quality as lipid feedstock for biofuel production. Under the conditions used in this study, the biomass productivity ranged from 3.7 to 52.7 mg·L−1·day−1 in relation to dry biomass, while the lipid productivity varied between 0.8 and 14.2 mg·L−1·day−1. All cyanobacterial strains evaluated yielded lipids with similar fatty acid composition to those present in the seed oils successfully used for biodiesel synthesis. However, by combining biomass and lipid productivity parameters, the greatest potential was found for Synechococcus sp. PCC7942, M. aeruginosa NPCD-1 and Trichormus sp. CENA77. The chosen lipid samples were further characterized using Fourier Transform Infrared spectroscopy (FTIR), viscosity and thermogravimetry and used as lipid feedstock for biodiesel synthesis by heterogeneous catalysis.
Keywords: fatty acid; lipid feedstock; productivity; cyanobacteria; biofuel
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Rós, P.C.M.D.; Silva, C.S.P.; Silva-Stenico, M.E.; Fiore, M.F.; Castro, H.F.D. Assessment of Chemical and Physico-Chemical Properties of Cyanobacterial Lipids for Biodiesel Production. Mar. Drugs 2013, 11, 2365-2381.
Rós PCMD, Silva CSP, Silva-Stenico ME, Fiore MF, Castro HFD. Assessment of Chemical and Physico-Chemical Properties of Cyanobacterial Lipids for Biodiesel Production. Marine Drugs. 2013; 11(7):2365-2381.
Rós, Patrícia C.M.D.; Silva, Caroline S.P.; Silva-Stenico, Maria E.; Fiore, Marli F.; Castro, Heizir F.D. 2013. "Assessment of Chemical and Physico-Chemical Properties of Cyanobacterial Lipids for Biodiesel Production." Mar. Drugs 11, no. 7: 2365-2381.