Journal
BIORESOURCE TECHNOLOGY
Volume 224, Issue -, Pages 481-489Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.11.020
Keywords
Microalgae; Continuous fermentation; High biomass productivity; High lipid productivity; High cell density
Funding
- Department of Science and Technology, India [SB/EMEQ/023/2013]
Ask authors/readers for more resources
A novel two-stage continuous heterotrophic cultivation of Chlorella sp. FC2 IITG was demonstrated for enhanced lipid productivity. Initially, effect of control variable e.g. dilution rate and feed stream substrate concentrations on biomass productivity was evaluated. This showed significant variation in biomass productivity from 2.4 gL (1) day (1) to 11.2 g L (1) day (1). Further, these control variables were optimized by using multi-nutrient mechanistic model for maximizing the biomass productivity. Finally, continuous production of lipid rich algal biomass was demonstrated in two sequential bioreactors for enhanced lipid productivity. The biomass productivity of 92.7 g L (1) day (1) was observed in the first reactor which was operated at model predicted optimal substrate concentrations of feed stream. The intracellular neutral lipid enrichment by acetate addition resulted in lipid productivity of 9.76 g L (1) day (1) in the second reactor. Both the biomass and lipid productivities obtained from current study are significantly high amongst similarly reported literatures. (C) 2016 Elsevier Ltd. All rights reserved.
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