Lipid production by microalgae Chlorella protothecoides with volatile fatty acids (VFAs) as carbon sources in heterotrophic cultivation and its economic assessment
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Author(s)
Fei, Qiang
Fu, Rongzhan
Shang, Longan
Brigham, Christopher J.
Chang, Ho Nam
Date Issued
October 2014
Journal
Bioprocess and Biosystems Engineering
Publisher
Springer Berlin Heidelberg
Citation
Fei, Qiang et al. “Lipid Production by Microalgae Chlorella Protothecoides with Volatile Fatty Acids (VFAs) as Carbon Sources in Heterotrophic Cultivation and Its Economic Assessment.” Bioprocess and Biosystems Engineering 38.4 (2015): 691–700.
Version
Author's final manuscript
Abstract
Volatile fatty acids (VFAs) that can be derived from food wastes were used for microbial lipid production by Chlorella protothecoides in heterotrophic cultures. The usage of VFAs as carbon sources for lipid accumulation was investigated in batch cultures. Culture medium, culture temperature, and nitrogen sources were explored for lipid production in the heterotrophic cultivation. The concentration and the ratio of VFAs exhibited significant influence on cell growth and lipid accumulation. The highest lipid yield coefficient and lipid content of C. protothecoides grown on VFAs were 0.187 g/g and 48.7 %, respectively. The lipid content and fatty acids produced using VFAs as carbon sources were similar to those seen on growth and production using glucose. The techno-economic analysis indicates that the biodiesel derived from the lipids produced by heterotrophic C. protothecoides with VFAs as carbon sources is very promising and competitive with other biofuels and fossil fuels.
MIT Department
Massachusetts Institute of Technology. Department of Biology
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s00449-014-1308-0
