Show simple item record

dc.contributor.authorSteinrücken, Pia
dc.contributor.authorMjøs, Svein Are
dc.contributor.authorPrestegard, Siv Kristin
dc.contributor.authorErga, Svein Rune
dc.date.accessioned2018-05-28T06:58:36Z
dc.date.available2018-05-28T06:58:36Z
dc.date.issued2018-04-17
dc.PublishedSteinrücken P, Mjøs SA, Prestegard SK, Erga SR. Enhancing EPA Content in an Arctic Diatom: A Factorial Design Study to Evaluate Interactive Effects of Growth Factors. Frontiers in Plant Science. 2018;9:491eng
dc.identifier.issn1664-462Xen_US
dc.identifier.urihttps://hdl.handle.net/1956/17720
dc.description.abstractMicroalgae with a high content of the omega-3 polyunsaturated fatty acids (PUFAs), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) are of great demand for microalgae-based technologies. An Arctic strain of the diatom Attheya septentrionalis was shown in previous experiments to increase its EPA content from 3.0 to 4.6% of dry weight (DW) in the nutrient-replete exponential phase and nutrient-depleted stationary phase, respectively. In the present study, a factorial-design experiment was used, to investigate this effect in more detail and in combination with varying salinities and irradiances. A mathematical model revealed that both growth phase and salinity, alone and in combination, influenced the EPA content significantly. Maximum EPA values of 7.1% DW were obtained at a salinity of 22 and after 5 days in stationary phase, and might be related to a decreased silica content, an accumulation of storage lipids containing EPA, or both. However, growth rates were lower for low salinity (0.54 and 0.57 d−1) than high salinity (0.77 and 0.98 d−1) cultures.en_US
dc.language.isoengeng
dc.publisherFrontiersen_US
dc.relation.ispartof<a href="http://hdl.handle.net/1956/17722" target="_blank">High-value fatty acids from microalgae. Bioprospecting and outdoor cultivation at northern latitudes</a>en_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.subjectEicosapentaenoic acid (EPA)eng
dc.subjectarctic diatomeng
dc.subjectfactorial designeng
dc.subjectSalinityeng
dc.subjectgrowth phaseeng
dc.subjectinteractive effectseng
dc.subjectmicroalgal biotechnologyeng
dc.titleEnhancing EPA Content in an Arctic Diatom: A Factorial Design Study to Evaluate Interactive Effects of Growth Factorsen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2018-05-28T06:54:29Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2018 The Author(s)en_US
dc.identifier.doihttps://doi.org/10.3389/fpls.2018.00491
dc.identifier.cristin1579768


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution CC BY
Except where otherwise noted, this item's license is described as Attribution CC BY