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Microalgal feedstock for the production of omega-3 fatty acid ethyl esters and ɛ-polylysine.
- Source :
-
Biotechnology reports (Amsterdam, Netherlands) [Biotechnol Rep (Amst)] 2021 Jun 29; Vol. 31, pp. e00656. Date of Electronic Publication: 2021 Jun 29 (Print Publication: 2021). - Publication Year :
- 2021
-
Abstract
- Microalgal omega-3 fatty acids are considered as an efficient alternative for fish-based omega-3 fatty acids. Ethyl esters derived from omega-3 fatty acids are being considered as the drug for hypertriglyceridemia. In this study, omega-3 fatty acids rich Chlorella sp. was utilized for the transesterification for the ethyl ester production using a potassium carbonate alkaline catalyst. At the optimized conditions of transesterification, 86.2% ethyl ester yield was achieved with solvent to algae ratio (20 mL/g), water addition (45 %), catalyst (4 %), temperature (75°C), and reaction time (60 min). Additionally, the acid-hydrolysed spent biomass was used for the production of ɛ-polylysine by fermentation using Streptomyces sp. as fermentative organism. The maximum yield of 1.78 g/L was achieved after 90 h fermentation. This study established a biorefinery approach where two highly valuable compounds could be produced from the Chlorella sp. by transesterification followed by fermentation.<br />Competing Interests: The authors declare that they have no competing interests.<br /> (© 2021 Published by Elsevier B.V.)
Details
- Language :
- English
- ISSN :
- 2215-017X
- Volume :
- 31
- Database :
- MEDLINE
- Journal :
- Biotechnology reports (Amsterdam, Netherlands)
- Publication Type :
- Academic Journal
- Accession number :
- 34277365
- Full Text :
- https://doi.org/10.1016/j.btre.2021.e00656