•  
  •  
 

Abstract

Recently, several strains of microalgae have been studied as they contain high lipid content capable to be converted to biodiesel. Fresh water microalgae Chlorella vulgaris studied in this research was one of the proof as it contained high triacyl glyceride which made it a potential candidate for biodiesel production. Factors responsible for good growing of microalgae such as CO2 and nitrogen concentration were investigated. It was found that total lipid content was increased after exposing to media with not enough nitrogen concentration. However, under this nitrogen depletion media, the growth rate was very slow leading to lower lipid productivity. The productivity could be increased by increasing CO2 concentration. The lipid content was found to be affected by drying temperature during lipid extraction of algal biomass. Drying at very low temperature under vacuum gave the best result but drying at 60oC slightly decreased the total lipid content.

References

F. Ma, M.A. Hanna, Bioresour. Technol. 70 (1999) 1.

Y. Zhang, M.A. Dube, D.D. McLean, M. Kates, Bioresour. Technol. 89 (2003) 1.

X. Lang, A.K. Dalai, N.N. Bakhshi, M.J. Reaney, P.B. Hertz, Bioresour. Technol. 80 (2001) 53.

G. Antolin, F.V. Tinaut, Y. Briceno, V. Castano, C. Perez, A.I. Ramirez, Bioresour. Technol. 83 (2002) 111.

G. Vicente, M. Martinez, J. Aracil, Bioresour. Technol. 92 (2004) 297.

T. Minowa, S.Y. Yokoyama, M. Kishimoto, T. Okakurat, Fuel 74 (1995) 1735.

X. Miao, Q.Y. Wu, Bioresour. Technol. 97 (2006) 841.

J. Sheehan, T. Dunahay, J. Benemann, P. Roessler: A Look Back at the U.S. Department of Energy’s Aquatic Species Program—Biodiesel from Algae, A Report to U.S. Department of Energy’s Office of Fuels Development (1999).

M. Zhu, P.P. Zhou, L.J. Yu, Bioresour. Technol. 84 (2002) 93.

T.M. Sobczuk, F.G. Camacho, F.C. Rubio, F.G.A. Ferna´ndez, E.M. Grima, Biotechnol. Bioeng. 67/4 (2000) p.465.

U. Riebesell, A.T. Revill, D.G. Holdsworth, J.K. Volkman, Geochimica et Cosmochimica Acta 64/24 (2000) 4179.

I. Iwasaki, N. Kurano, S. Miyachi, Journal of Photochemistry and Photobiology B: Biology 36 (1996) 327.

Cited By

22

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.