Scenedesmus incrassatulus CLHE-Si01: A potential source of renewable lipid for high quality biodiesel production

• Published in: Bioresource technology Vol. 140; pp. 158 - 164
• Main Authors: Arias-Peñaranda, Martha T., Cristiani-Urbina, Eliseo, Montes-Horcasitas, Carmen, Esparza-Garcı́a, Fernando, Torzillo, Giuseppe, Cañizares-Villanueva, Rosa Olivia
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-07-2013; Elsevier
• Subjects: Biodiesel; Biodiesel quality; Biofuel production; Biofuels; Biological and medical sciences; Biotechnology; Biotechnology - methods; Density; Dry cells; Empirical equations; Energy; Enzymatic transesterification; Esters - metabolism; Fatty Acids - metabolism; Feedstock; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; Lipids; Lipids - biosynthesis; Models, Theoretical; Novozym 435; Oils - metabolism; Renewable Energy; Scenedesmus; Scenedesmus - growth & development; Scenedesmus - metabolism; Scenedesmus incrassatulus; Enzymatic transesterification; Scenedesmus incrassatulus; Novozym 435; Biodiesel quality; Biodiesel; Enzyme; Algae; Lipids; Scenedesmus; Transesterification; Chlorophyceae; Chlorophyta; Quality
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2013.04.080

•S. incrassatulus oil has the potential for high quality biodiesel production.•S. incrassatulus biodiesel properties meet international standards for biodiesel.•Microalgal biodiesel synthesized using immobilized lipase without solvent.•High amounts of oleic acid and palmitic acid were detected in S. incrassatulus oil.
The potential of microalgal oil from Scenedesmus incrassatulus as a feedstock for biodiesel production was studied. Cell concentration of S. incrassatulus and lipid content obtained during mixotrophic growth were 1.8g/L and 19.5±1.5% dry cell weight, respectively. The major components of biodiesel obtained from S. incrassatulus oil were methyl palmitate (26%) and methyl linoleate (49%), which provided a strong indication of high quality biodiesel. Fuel properties were determined by empirical equations and found to be within the limits of biodiesel standard ASTM D6751 and EN 14214. The quality properties of the biodiesel were high cetane number (62), low density (803kg/m3), low viscosity (3.78mm2/s), oxidation stability (9h) and cold filter plugging point (−4°C). Hence, S. incrassatulus has potential as a feedstock for the production of excellent quality biodiesel.