Brennan, Brian ORCID: 0000-0003-1869-2140 and Regan, Fiona ORCID: 0000-0002-8273-9970 (2020) In-situ lipid and fatty acid extraction methods to recover viable products from Nannochloropsis sp. Science of the Total Environment, 748 . ISSN 0048-9697
Abstract
Nannochloropsis sp. has received increased attention by researchers in recent years due to its complexity and
abundance of lipid structures. The lipids of this microalgae species have been identified to contain large quantities
of neutral lipids which are capable of producing raw materials for nutraceuticals, food additives and biofuels. The
production of biodiesel has received the greatest attention as there is an increase in global demand for both more
fuel and more environmentally sustainable methods to produce such resources. The greatest challenges facing
industries to mass produce viable products from microalgae involve the degradation of the cell wall and
extracting the fatty acid of interest due to high costs. Various studies have shown that the extraction lipids
from the microalgae can greatly influence the overall fatty acid composition. Different extraction methods can re-
sult in recovering higher quantities of either saturated fatty acids, monounsaturated fatty acids or polyunsatu-
rated fatty acids. Biodiesel production requires higher quantities of saturated fatty acids and monosaturated
fatty acids as increased quantities of polyunsaturated fatty acids result in oxidation which decreases the perfor-
mance of the biodiesel. Whereas, polyunsaturated fatty acids are required in order to produce pharmaceuticals
and food additives such as omega 3.
This review will focus on how different in-situ extraction methods for lipid and fatty acid recovery, influence the
fatty acid composition of various Nannochloropsis species (oculate, gaditana, salina and oceanica). The mechanical
methods (microwave, ultrasonic and supercritical‑carbon dioxide) of extraction for Nannochloropsis sp. will be
critically evaluated. The use of enzymes will also be addressed, for their ability to extract fatty acids in a more
environmentally friendly manner. This paper will report on the viable
byproducts which can be produced using
different extraction methods.
Metadata
Item Type: | Article (Published) |
---|---|
Refereed: | Yes |
Additional Information: | Article number: 142464 |
Uncontrolled Keywords: | Biodiesel; Extraction; Fatty acid; FAME; Lipid; Nannochloropsis sp. |
Subjects: | Physical Sciences > Chemistry |
DCU Faculties and Centres: | DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences Research Initiatives and Centres > Water Institute |
Publisher: | Elsevier |
Official URL: | https://dx.doi.org/10.1016/j.scitotenv.2020.142464 |
Copyright Information: | ©2020 The Authors. Open Access (CC-BY 4.0) |
ID Code: | 27492 |
Deposited On: | 05 Aug 2022 11:00 by Thomas Murtagh . Last Modified 05 Aug 2022 11:00 |
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