Journal
BIOTECHNOLOGY LETTERS
Volume 31, Issue 7, Pages 1043-1049Publisher
SPRINGER
DOI: 10.1007/s10529-009-9975-7
Keywords
Algal fuels; Autotrophic; Biodiesel; Chlorella vulgaris; Glycerol; Heterotrophic; Lipid productivity
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Funding
- Southern Illinois University Carbondale (SIUC)' s
- SIUC Material Technology Center
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Biomass and lipid productivities of Chlorella vulgaris under different growth conditions were investigated. While autotrophic growth did provide higher cellular lipid content (38%), the lipid productivity was much lower compared with those from heterotrophic growth with acetate, glucose, or glycerol. Optimal cell growth (2 g l(-1)) and lipid productivity (54 mg l(-1) day(-1)) were attained using glucose at 1% (w/v) whereas higher concentrations were inhibitory. Growth of C. vulgaris on glycerol had a similar dose effects as those from glucose. Overall, C. vulgaris is mixotrophic.
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