Journal
BIOTECHNOLOGY LETTERS
Volume 33, Issue 10, Pages 1973-1983Publisher
SPRINGER
DOI: 10.1007/s10529-011-0672-y
Keywords
Biodiesel; Chlorella protothecoides; Crude glycerol; Heterotrophic growth; Lipid productivity
Categories
Funding
- Clemson University Public Service Activities
- US of Department of Energy
Ask authors/readers for more resources
Microalgal lipids may be a more sustainable biodiesel feedstock than crop oils. We have investigated the potential for using the crude glycerol as a carbon substrate. In batch mode, the biomass and lipid concentration of Chlorella protothecoides cultivated in a crude glycerol medium were, respectively, 23.5 and 14.6 g/l in a 6-day cultivation. In the fed-batch mode, the biomass and lipid concentration improved to 45.2 and 24.6 g/l after 8.2 days of cultivation, respectively. The maximum lipid productivity of 3 g/l day in the fed-batch mode was higher than that produced by batch cultivation. This work demonstrates the feasibility of crude biodiesel glycerol as an alternative carbon substrate to glucose for microalgal cultivation and a cost reduction of carbon substrate feed in microalgal lipid production may be expected.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available